DET Read & Complete Practice:
5 Passages to Test Your Level
From Intermediate to Advanced — Find Where You Stand
These five passages are a bonus practice set from an upcoming DET preparation book — DET 120+ in 30 Days. Each passage mirrors the real Read & Complete format: partial words, a three-minute time limit, and no multiple-choice options.
This practice set is designed to build reading speed, contextual awareness, and spelling accuracy under real DET conditions. Follow DETnTedu.com for the full book release.
Real DET Format
- 3 minutes per passage — use the full time
- Each blank ( _ ) = one missing letter
- No multiple choice — type the complete word
- Move freely between blanks using Tab or mouse
- First and last sentences are always complete — read them before anything else
The Arctic tern undertakes the longest migration of any known animal on Earth.
Each year, th_ _ _ birds tra_ _ _ from th_ _ _ Arctic breeding grounds to the Antarctic an_ back, cove_ _ _ _ a round-trip dist_ _ _ _ of approximately 70,000 kilometers.
Th_ _ rely on favo_ _ _ _ _ wind patterns t_ conserve energy during t_ _ journey, oft_ _ following a figure-eight route acr_ _ _ the Atlantic Ocean.
Wh_ _ _ scientists ha_ _ tracked th_ _ _ movements using light_ _ _ _ _ _ geolocators, much about th_ _ _ internal navigation system rem_ _ _ _ unknown.
The Arctic tern's remarkable endurance continues to inspire researchers studying long-distance animal migration.
Show Answer Key
these (th_ _ _) · travel (tra_ _ _) · their (th_ _ _) · and (an_) · covering (cove_ _ _ _) · distance (dist_ _ _ _) · They (Th_ _) · favorable (favo_ _ _ _ _) · to (t_) · the (t_ _) · often (oft_ _) · across (acr_ _ _) · While (Wh_ _ _) · have (ha_ _) · their (th_ _ _) · lightweight (light_ _ _ _ _ _) · their (th_ _ _) · remains (rem_ _ _ _)
The development of the printing press in fifteenth-century Europe transformed the way knowledge was produced and distributed.
Bef_ _ _ its invention, books we_ _ copied enti_ _ _ _ by hand, a process th_ _ was both time-consuming and expe_ _ _ _ _.
Johannes Gutenberg's movable-type press allowed texts to b_ reproduced qui_ _ _ _ and at signif_ _ _ _ _ _ _ lower cost, making th_ _ accessible to a much wi_ _ _ audience.
Ov_ _ the following decades, th_ _ technology spr_ _ _ rapidly across the continent, fue_ _ _ _ the Renaissance and laying the groundwork fo_ the Scientific Revolution.
The printing press is widely regarded as one of the most consequential innovations in human history.
Show Answer Key
Before (Bef_ _ _) · were (we_ _) · entirely (enti_ _ _ _) · that (th_ _) · expensive (expe_ _ _ _ _) · be (b_) · quickly (qui_ _ _ _) · significantly (signif_ _ _ _ _ _ _) · them (th_ _) · wider (wi_ _ _) · Over (Ov_ _) · this (th_ _) · spread (spr_ _ _) · fueling (fue_ _ _ _) · for (fo_)
The global shift toward renewable energy sources has accelerated sharply over the past two decades.
Falling produ_ _ _ _ _ costs have made solar and wi_ _ power compet_ _ _ _ _ _ with fossil fuels, enab_ _ _ _ governments and private investors t_ commit to large-scale clean energy projects.
How_ _ _ _, the transition has not be_ _ without challenges — energy storage limit_ _ _ _ _ _ and grid infrastructure gaps continue to slow prog_ _ _ _ in ma_ _ regions.
Alth_ _ _ _ investment in battery technology has grown consid_ _ _ _ _ _, the capacity to store renewable energy at the required scale is still far from adeq_ _ _ _.
Closing these gaps will be essential if the world is to meet its long-term carbon reduction targets.
Show Answer Key
production (produ_ _ _ _ _) · wind (wi_ _) · competitive (compet_ _ _ _ _ _) · enabling (enab_ _ _ _) · to (t_) · However (How_ _ _ _) · been (be_ _) · limitations (limit_ _ _ _ _ _) · progress (prog_ _ _ _) · many (ma_ _) · Although (Alth_ _ _ _) · considerably (consid_ _ _ _ _ _) · adequate (adeq_ _ _ _)
The widespread adoption of remote work has fundamentally altered labor market dynamics in many countries.
Employers have reported bo_ _ gains and losses — wh_ _ _ productivity has increased i_ certain roles, collab_ _ _ _ _ _ _ tasks and mentorship have become har_ _ _ to manage at a dist_ _ _ _.
Furth_ _ _ _ _ _, the shift has inten_ _ _ _ _ _ demand for housing in subu_ _ _ _ and rural areas, a_ workers are no longer const_ _ _ _ _ _ by prox_ _ _ _ _ to urban offices.
Th_ _ _ changes ha_ had consid_ _ _ _ _ _ implications for local economies, with some city centers experiencing red_ _ _ _ foot traffic and declining commercial activity.
The long-term economic consequences of remote work are still emerging and will likely vary significantly across industries and regions.
Show Answer Key
both (bo_ _) · while (wh_ _ _) · in (i_) · collaborative (collab_ _ _ _ _ _ _) · harder (har_ _ _) · distance (dist_ _ _ _) · Furthermore (Furth_ _ _ _ _ _) · intensified (inten_ _ _ _ _ _) · suburban (subu_ _ _ _) · as (a_) · constrained (const_ _ _ _ _ _) · proximity (prox_ _ _ _ _) · These (Th_ _ _) · had (ha_) · considerable (consid_ _ _ _ _ _) · reduced (red_ _ _ _)
Ocean acidification, driven by the absorption of excess atmospheric carbon dioxide, represents one of the most serious threats to marine biodiversity.
As carbon dio_ _ _ _ dissolves i_ seawater, it forms carb_ _ _ _ acid, which grad_ _ _ _ _ lowers the pH of the ocean and red_ _ _ _ the availability of carbo_ _ _ _ ions esse_ _ _ _ _ for shell and skeleton formation.
Orga_ _ _ _ _ such as corals, oysters, and certain plankton spe_ _ _ _ are particularly vulne_ _ _ _ _ to th_ _ _ chemical changes, a_ their struc_ _ _ _ _ integrity dep_ _ _ _ on stable carbonate concentrations.
Furth_ _ _ _ _ _, the consequences ext_ _ _ beyond individual species — the collapse o_ shell-forming organisms can desta_ _ _ _ _ _ entire food we_ _, with casc_ _ _ _ _ effects on fisheries and coastal communities.
Addressing ocean acidification will require not only dramatic reductions in carbon emissions but also targeted interventions to protect the most vulnerable marine ecosystems.
Show Answer Key
dioxide (dio_ _ _ _) · in (i_) · carbonic (carb_ _ _ _) · gradually (grad_ _ _ _ _) · reduces (red_ _ _ _) · carbonate (carbo_ _ _ _) · essential (esse_ _ _ _ _) · Organisms (Orga_ _ _ _ _) · species (spe_ _ _ _) · vulnerable (vulne_ _ _ _ _) · these (th_ _ _) · as (a_) · structural (struc_ _ _ _ _) · depends (dep_ _ _ _) · Furthermore (Furth_ _ _ _ _ _) · extend (ext_ _ _) · of (o_) · destabilize (desta_ _ _ _ _ _) · webs (we_ _) · cascading (casc_ _ _ _ _)
How Did You Do?
| Passages Completed | What It Suggests |
|---|---|
| Passages 1-2 cleanly | Strong foundation — target score range: 110-120 |
| Passages 1-3 cleanly | Solid intermediate level — 120 is within reach |
| Passages 1-4 cleanly | Advanced proficiency — pushing toward 125-130 |
| All 5 cleanly | Read & Complete is a clear strength — keep it there |
What Your Mistakes Tell You
| If you missed... | What it likely means |
|---|---|
| Short function words | Start with the shortest blanks first — build momentum before tackling longer words |
| Pronouns (they, their, these) | Check the previous sentence — singular or plural subject determines the answer |
| Discourse markers (however, furthermore) | Pay attention to the logical relationship between sentences — contrast, addition, or result |
| Long academic words | Build academic vocabulary through regular reading — BBC, Scientific American, Wikipedia |
DET 120+ in 30 Days covers every question type, the TSM Formula for Speaking and Writing, and hundreds of additional practice items across all skill areas.
Follow DETnTedu.com to be the first to know when it launches.
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