Most students use Cambridge practice tests the same way: do the test, check the score, feel good or bad, start the next one. That uses up the books quickly without much improvement, because the score only tells you how many marks you lost, not why. The review after the test is where the improvement happens. This guide explains a simple method that takes 20 to 30 minutes per test and turns each one into a specific study plan.
Step 1: Take the test under real conditions
The review is only useful if the test was realistic.
- Reading: 60 minutes for all three passages, no dictionary, answers written within the time.
- Listening: play the recording once, without pausing or rewinding, and answer as you go. Then allow 10 minutes to transfer (paper-based) or 2 minutes to check (computer-delivered).
If you pause the audio or give yourself extra time, your score will look higher than your real level, and the review will miss the errors that happen under pressure.
Step 2: Mark strictly
Mark every answer against the key using the real rules: spelling, plurals and word limits all count. The answer-writing rules guide explains what brackets and slashes in the key mean. If you are generous with yourself here, you are hiding exactly the errors that are easiest to fix.
On any HighTargets answer key, turn on Hide answers to reveal one answer at a time, and Score my test to count your raw score and see the approximate band.
Step 3: Find the evidence for every wrong answer
Before deciding why you got an answer wrong, find the exact place in the passage (or the audio transcript at the back of the Cambridge book) that gives the right answer. Underline it. Then compare it with what you wrote.
This step is the one most students skip, and it matters most. Finding the evidence yourself trains the skill of locating information under time pressure.
Step 4: Put each wrong answer into one category
Every lost mark has a cause. Use these five categories:
| Category | What happened | Example |
|---|---|---|
| Paraphrase | You didn’t recognise the passage saying the same thing in other words | “Rarely” in the passage, “not often” in the question |
| Location | You couldn’t find the right part of the text or lost your place in the audio | Missed answer 24 and wrote it in 25 |
| Trap | You chose an option the text mentions but rejects, or which answers a different question | Chose the first price mentioned, before the speaker corrected it |
| Form | You understood the answer but wrote it wrongly | Spelling, missing plural “s”, over the word limit |
| Time | You guessed or left it blank because time ran out | Last four questions of Passage 3 |
Step 5: Keep a running log
Record the results of every test in one simple table: the test, the question number, the question type, the category, and a short note, such as “accommodation, spelt with one m”. After three or four tests the pattern becomes obvious, and each category has a different fix:
- Mostly paraphrase: build vocabulary from the passages themselves. After each review, write down the pairs of words that meant the same thing.
- Mostly location: practise skimming for structure. Before answering, spend two minutes reading the first sentence of each paragraph. In Listening, read ahead during the pauses so you know what the next answer sounds like.
- Mostly traps: slow down on multiple-choice questions and look for words like but, actually, however, instead, where speakers and writers change their minds.
- Mostly form: these are the cheapest marks available. Keep a spelling list and check plurals and word limits on every completion answer.
- Mostly time: use a fixed time plan for Reading and practise moving on when the time for a passage is up.
Step 6: Re-test the weak point, not the whole test
After the review, spend your next study session on the category with the most errors, using only the question types it affects. Then take the next full test and compare. A log over four or five tests will show real progress in a way that a single score cannot.
Scores vary by a mark or two between tests, so focus on the trend rather than any one result. How band scores are calculated explains what a change of a few marks means for your band.
When you are ready, pick a test from the Cambridge IELTS 20 and 21 answer keys and start your first log.