DET Fill in the Blanks Practice:
70 Questions for Accuracy & Vocabulary Building
Sharpen Your Accuracy. Boost Your Score.
These 70 questions are a bonus practice set from an upcoming DET preparation book — DET 120+ in 30 Days. The full strategy breakdown, part-of-speech analysis, and complete guides for every DET question type will all be covered in detail in the book.
We will announce the release right here on DETnTedu.com as soon as it is available. Stay tuned — and in the meantime, enjoy the practice.
This practice set is designed to help learners build speed, spelling accuracy, and contextual awareness under real DET conditions.
What Makes Fill in the Blanks Different
Unlike Read & Select, where you simply recognize a word, the Duolingo English Test Fill in the Blanks task requires you to produce the word — spelled perfectly, under time pressure, with no options to choose from. This DET Fill in the Blanks practice set is organized across three difficulty levels. Work through them in order, or jump to the level that matches your current target score.
Real DET Timing Rule
- Maximum: 20 seconds per question
- No dictionary. No options to choose from.
- Identify the part of speech first — then complete the spelling.
How to Use This Practice Set
This DET vocabulary practice set covers Foundation through Advanced levels — designed to mirror the real Duolingo English Test experience.
- Work through each section in order — Foundation first, then Intermediate, then Advanced.
- Give yourself a strict 20-second limit per question.
- Write your answers in a notebook or notes app before checking the answer key.
- For any question you get wrong, note why — wrong word, wrong form, or spelling error?
Quick Reference: The Three-Step Decision System
| Step | What to Do |
|---|---|
| Step 1 | Read the full sentence before looking at the blank |
| Step 2 | Identify the part of speech — noun, verb, adjective, adverb, or function word |
| Step 3 | Complete the spelling precisely — every blank ( _ ) is one letter |
Section 1 of 3
Foundation Level — Questions 1–20
Focus: common vocabulary · basic verb forms · everyday collocations
| # | Sentence |
|---|---|
| 1 | She set her al_ _ _ for 6 a.m. to catch her early morning flight. |
| 2 | He decided to take a wa_ _ through the park before dinner. |
| 3 | The doctor advised him to stay hydr_ _ _ _ throughout the day. |
| 4 | She wiped the counter with a damp cl_ _ _ after cooking. |
| 5 | He forgot to renew his prescri_ _ _ _ _ _ and had to visit the clinic again. |
| 6 | The children ran excit_ _ _ _ toward the playground after school. |
| 7 | She packed her suit_ _ _ _ the night before her departure. |
| 8 | He was too ner_ _ _ _ to speak in front of the large audience. |
| 9 | The teacher asked students to underl_ _ _ _ the key terms in the passage. |
| 10 | After a long week, she looked forward to rela_ _ _ _ at home. |
| 11 | The patient showed signs of reco_ _ _ _ after three days of treatment. |
| 12 | He stopped at the pharmacy to pick up his daily supp_ _ _ _ _ _ before heading to work. |
| 13 | She made a shopping list to avoid buying items on impu_ _ _. |
| 14 | The road was slip_ _ _ _ after the freezing rain. |
| 15 | A chron_ _ lack of sleep has been linked to cardiovascular disease. |
| 16 | The family went for a str_ _ _ through the park on Sunday morning. |
| 17 | She could not find her umbr_ _ _ _ and got soaked in the downpour. |
| 18 | He asked his doctor whether the new medic_ _ _ _ _ would cause side effects. |
| 19 | The neighbors complained about the cons_ _ _ _ noise from upstairs. |
| 20 | He decided to cut back on caff_ _ _ _ _ after trouble sleeping at night. |
Answer Key — Section 1
1-alarm / 2-walk / 3-hydrated / 4-cloth / 5-prescription / 6-excitedly / 7-suitcase / 8-nervous / 9-underline / 10-relaxing / 11-recovery / 12-supplement / 13-impulse / 14-slippery / 15-chronic / 16-stroll / 17-umbrella / 18-medication / 19-constant / 20-caffeine
Section 2 of 3
Intermediate Level — Questions 21–50
Focus: academic and professional vocabulary · collocations · verb forms
| # | Sentence |
|---|---|
| 21 | The professor urged students to think criti_ _ _ _ _ rather than memorizing facts. |
| 22 | The curriculum was redesigned to reflect more contemp_ _ _ _ _ _ topics in society. |
| 23 | Students are expected to submit original work and avoid plagi_ _ _ _ _ at all costs. |
| 24 | He enrolled in an online certif_ _ _ _ _ _ _ program to enhance his credentials. |
| 25 | The manager scheduled a brief_ _ _ session before the client presentation. |
| 26 | She was recognized for her ability to negot_ _ _ _ _ complex contracts under pressure. |
| 27 | The annual budget was revised to accomm_ _ _ _ _ _ the unexpected rise in costs. |
| 28 | The CEO emphasized the importance of transp_ _ _ _ _ _ in financial reporting. |
| 29 | The firm hired an external cons_ _ _ _ _ _ to assess its operational efficiency. |
| 30 | After lengthy negoti_ _ _ _ _ _, both companies agreed on the final terms. |
| 31 | She demonstrated rema_ _ _ _ _ _ leadership skills during the company's hardest quarter. |
| 32 | The new policy required all employees to complete a mand_ _ _ _ _ training session. |
| 33 | The literacy rate improved significantly following new educa_ _ _ _ _ _ _ reforms. |
| 34 | Prolonged expo_ _ _ _ to ultraviolet radiation increases the risk of skin cancer. |
| 35 | The vaccine was found to be highly effe_ _ _ _ _ against the new strain of the virus. |
| 36 | The patient was placed under obser_ _ _ _ _ _ to monitor for post-surgical complications. |
| 37 | The clinical trial confirmed that the drug reduces inflam_ _ _ _ _ _ in affected tissue. |
| 38 | The organization advocates for equal repres_ _ _ _ _ _ _ _ _ _ of women in leadership. |
| 39 | The community center offers free couns_ _ _ _ _ _ services to those in financial hardship. |
| 40 | Refugees face enormous psycholo_ _ _ _ _ _ challenges when adapting to a new country. |
| 41 | The company introduced a new perfor_ _ _ _ _ evaluation system to replace annual reviews. |
| 42 | The legal team ensured full regul_ _ _ _ _ compliance across all departments. |
| 43 | Employee satisf_ _ _ _ _ _ surveys revealed growing concern about workload distribution. |
| 44 | He was recruited for his expertise in supply ch_ _ _ management and logistics. |
| 45 | The startup secured signif_ _ _ _ _ funding from a venture capital firm. |
| 46 | She handed the new employee a detail_ _ onboarding guide on her first day. |
| 47 | The seminar focused on the inter_ _ _ _ of culture and language in academic settings. |
| 48 | Her thesis argued that traditional pedag_ _ _ _ _ _ _ _ methods were no longer sufficient. |
| 49 | The library's digital archive made rare manus_ _ _ _ _ _ accessible to all researchers. |
| 50 | Both parties signed the non-discl_ _ _ _ _ agreement before the merger talks began. |
Answer Key — Section 2
21-critically / 22-contemporary / 23-plagiarism / 24-certification / 25-briefing / 26-negotiate / 27-accommodate / 28-transparency / 29-consultant / 30-negotiations / 31-remarkable / 32-mandatory / 33-educational / 34-exposure / 35-effective / 36-observation / 37-inflammation / 38-representation / 39-counseling / 40-psychological / 41-performance / 42-regulatory / 43-satisfaction / 44-chain / 45-significant / 46-detailed / 47-interplay / 48-pedagogical / 49-manuscripts / 50-disclosure
Section 3 of 3
Advanced Level — Questions 51–70
Focus: academic vocabulary · complex collocations · non-finite verb traps
These are the words that appear at higher DET score levels. Identify the part of speech before attempting the spelling.
| # | Sentence |
|---|---|
| 51 | The experiment aimed to test the hypo_ _ _ _ _ _ that light exposure affects plant growth. |
| 52 | The new curriculum places greater emphasis on empi_ _ _ _ _ evidence over theoretical models. |
| 53 | Researchers found a strong correl_ _ _ _ _ _ between air pollution and respiratory illness. |
| 54 | The marketing director proposed a compreh_ _ _ _ _ _ _ digital strategy to boost visibility. |
| 55 | Faculty were encouraged to incorporate collab_ _ _ _ _ _ _ learning techniques into courses. |
| 56 | The journalist's invest_ _ _ _ _ _ _ _ _ report exposed corruption within local government. |
| 57 | Sociologists argue that digital media has reshaped interpe_ _ _ _ _ _ _ communication fundamentally. |
| 58 | The new legislation aims to combat discrim_ _ _ _ _ _ _ _ _ in hiring and workplace practices. |
| 59 | The student's refle_ _ _ _ _ on her learning process led to measurable academic improvement. |
| 60 | Voters are showing growing dissat_ _ _ _ _ _ _ _ _ _ _ with mainstream political parties. |
| 61 | The compound was shown to inhibit tumor growth by disrupting cell prolif_ _ _ _ _ _ _ _. |
| 62 | A breakthrough in neur_ _ _ _ _ has offered new hope for patients with brain conditions. |
| 63 | The ozone layer plays a critical role in absorbing ultrav_ _ _ _ _ radiation from the sun. |
| 64 | Geneticists are working to identify the muta_ _ _ _ _ responsible for the inherited condition. |
| 65 | The enzyme's catal_ _ _ _ activity was significantly reduced at higher temperature levels. |
| 66 | The policy change sparked wides_ _ _ _ _ debate across political and academic circles. |
| 67 | Scholars debate whether global_ _ _ _ _ _ _ has strengthened or eroded local cultural identities. |
| 68 | Rising housing costs have forced many residents to relocate to the city's perip_ _ _ _ _. |
| 69 | The researcher questioned the valid_ _ _ of the data collected during the experiment. |
| 70 | The board was reluctant t_ disclose the full details of the ongoing investigation. |
Answer Key — Section 3
51-hypothesis / 52-empirical / 53-correlation / 54-comprehensive / 55-collaborative / 56-investigative / 57-interpersonal / 58-discrimination / 59-reflection / 60-dissatisfaction / 61-proliferation / 62-neurology / 63-ultraviolet / 64-mutations / 65-catalytic / 66-widespread / 67-globalization / 68-periphery / 69-validity / 70-to
What Your Mistakes Tell You
Do not just count your score — look at the pattern. Understanding why you got something wrong is worth more than the number itself.
| If you missed... | What it likely means |
|---|---|
| Foundation vocabulary | Focus on everyday collocations and basic spelling patterns first. |
| Verb forms and tenses | Review how tense and subject agreement work in context. |
| Non-finite verb traps | Study when to use -ing, -ed, and to + verb forms carefully. |
| Long academic vocabulary items | Expand your academic vocabulary base through formal reading — try The Economist or Scientific American. |
| Short function words | These require collocation knowledge. Build an error log of the short words you miss most often. |
How Did You Do?
| Score | What It Means |
|---|---|
| 63–70 | Excellent — Fill in the Blanks is a clear strength. Keep it there. |
| 52–62 | Good — Review your missed words and identify the pattern. |
| 40–51 | Fair — Focus on the Foundation and Intermediate sections first. |
| Below 40 | Build a stronger foundation first and repeat the Foundation section regularly before moving on. |
Want the Full Strategy Guide?
DET 120+ in 30 Days is coming soon. When it launches, you will find:
- A complete Fill in the Blanks strategy system including the Part-of-Speech Breakdown
- The Three-Step Decision System explained in full detail
- Hundreds of additional practice items across all question types
- The TSM Formula for Speaking and Writing
- A complete 30-day study plan
Follow DETnTedu.com to be the first to know when it drops.
Comments
Post a Comment