DET Reading Question Types

Reading is the largest part of the adaptive stage and the fastest subscore to move. Four question types feed it, and three of them test something IELTS and TOEFL barely touch: whether you can recognise and rebuild English words at speed.

What the Reading Subscore Measures

The DET does not give you three long passages and forty questions. It gives you a stream of small reading tasks, most of them adaptive, spread across the first half of the sitting. Together they occupy roughly 28 to 38 minutes of the test.

Question type	Per test	Time	Adaptive	Scored as
Read and Select	15-18 words, one set	5 seconds per word	Yes	Right or wrong
Fill in the Blanks	6-9 sentences, one set	20 seconds per sentence	Yes	Right or wrong
Read and Complete	3-6 passages	3 minutes per passage	Yes	Right or wrong, per word
Interactive Reading	2 passages, 6 questions each	7 or 8 minutes per passage	Yes	Right or wrong, except Highlight the Answer (0 to 1)

Reading and Listening together produce your Comprehension subscore, and Reading and Writing produce Literacy. A weak Reading subscore therefore drags down two of the four integrated scores that appear on your report.

The Four Question Types

Read and Select

Decide whether a written word is a real English word or an invented one, five seconds at a time.

Fill in the Blanks

One sentence, one half-finished word. Type the letters that complete it before the twenty seconds run out.

Read and Complete

A short passage with several damaged words. Restore every one of them in three minutes.

Interactive Reading

Six linked questions on one passage that reveal the text to you a piece at a time.

Why Vocabulary Decides This Subscore

Three of the four reading types are, underneath, vocabulary tests. Read and Select asks whether a string is a real English word. Fill in the Blanks and Read and Complete ask you to produce the rest of a word from its first few letters and the sentence around it. None of them can be solved by reading strategy; they are solved by knowing words.

The invented words in Read and Select are built to look plausible: real prefixes and suffixes hung on the wrong stem, or a real word misspelt by one letter. Ambitionate, unhappiment and beleive are all rejects.
Fill in the Blanks and Read and Complete accept only the exact spelling. A right word spelt wrongly scores zero, which makes spelling drills worth as much as vocabulary drills here.
The words come from general academic and everyday English, not from a specialist field. Frequency lists beat topic lists.
Word families pay twice: knowing analyse, analysis, analytical and analyst covers four possible blanks and four possible traps.

The single highest-return exercise for DET Reading is reading a paragraph of real English aloud and stopping at every word you could not have rebuilt from its first three letters. That list is your study list.

Timing and the Clock

Question type	Clock	What the clock punishes
Read and Select	5 seconds per word	Hesitation. There is no time to reason; you either recognise the word or you do not.
Fill in the Blanks	20 seconds per sentence	Reading the sentence twice. Read once, decide, type.
Read and Complete	3 minutes per passage	Working left to right. Do the easy words first and let them narrow the hard ones.
Interactive Reading	7 or 8 minutes per passage	Over-investing in question one. Six questions share one clock.

Read and Select is the only place on the DET where a deliberate guessing policy helps. Five seconds is not enough to deliberate, so decide in advance: if you have never seen the string before, answer No and move on.

The Five Most Expensive Reading Mistakes

Guessing Yes on unfamiliar words. The fake words are designed to feel familiar. A wrong Yes costs exactly as much as a wrong No, but there are far more chances to make it.
Typing before reading in Read and Complete. The title and the first and last sentences are never damaged, so read them first — they hand you the topic.
Ignoring grammar clues. A blank after the is a noun, after very an adjective. Half the work is done before you think about meaning.
Rereading the passage in Interactive Reading. The text is shown again at every stage. Use what the earlier questions taught you rather than starting from the top each time.
Running out of clock on the last passage. Interactive Reading comes in two sets, one at seven minutes and one at eight. Check the timer before you commit to a long re-read.

How to Prepare

Ten minutes a day of Read and Select at real speed. Speed is the skill; accuracy without speed does not exist here.
Rebuild words from fragments. Cover the second half of words in any article you read and restore them.
Keep a misspelling list. On this test, spelling errors are reading errors, because they are marked as wrong answers.
Do full Interactive Reading sets under the real 7 or 8 minute clock, never question by question.
Read one non-fiction article a day in English on a topic you do not know. Range beats depth for this subscore.

Timed drills for all four types are in the DET practice hub, and worked examples with answer keys are on the DET Reading samples page.

Kirill O'Nayd, Duolingo English Test expert

Written by Kirill O'Nayd

English test expert and educator at TestSucceed, where he builds the Duolingo English Test practice tasks and mock tests and has spent years taking apart how computer-adaptive, AI-graded exams award their points. See all TestSucceed preparation materials.