20Seconds
1Question
20Total
0🔥 Streak
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How to play Complete the Sentence

Read the sentence with a blank space and type the missing word or phrase. Some exercises accept multiple correct answers — the system will accept any valid completion. Press Enter or click Check to confirm each answer.

A running score tracks your progress through the exercise. If you answer incorrectly, the correct answer is shown so you can learn from the error before moving to the next sentence.

Why Complete the Sentence improves your English

Active recall — retrieving a word from memory rather than recognising it from options — is one of the most effective techniques in learning science. Unlike multiple choice, fill-in-the-blank forces your brain to generate the answer independently, which creates stronger, more durable memory traces.

Context is everything in language learning. Seeing a word in a complete sentence teaches you not just the word's meaning but its collocations, register, and grammatical behaviour — all at once. This mirrors the way native speakers naturally acquire vocabulary.

Study tip: If you get an answer wrong, don't just move on. Read the full sentence again with the correct word in place, say it aloud, and visualise using the word in your own sentence. This three-step reinforcement greatly improves retention.

Types of gaps in sentence completion

  • Missing verb form: choosing the correct tense or aspect (was/were, has/have gone).
  • Missing preposition: selecting the right preposition (interested in, good at).
  • Missing vocabulary word: choosing the correct word from your known vocabulary.
  • Missing article: deciding whether a/an/the or no article is needed.
  • Missing connector: linking ideas with however, although, therefore, etc.

Tips for Complete the Sentence success

  • Read the whole sentence first: The words before and after the gap give strong clues about meaning and grammar.
  • Say it aloud: Your ear will often catch a wrong answer that your eye accepts.
  • Check verb agreement: Singular/plural and tense consistency are the most common mistakes.
  • Learn from feedback: Study wrong answers carefully — understanding why you erred prevents the same mistake.

Related exercises

  • Cloze Dropdown — similar gap-fill but with multiple-choice options provided in context.
  • Unjumble — rearrange words to form a correct complete sentence.
  • Audio Dictation — listen and type sentences to practise spelling and listening comprehension.
  • Quiz — test vocabulary and grammar knowledge with multiple choice questions.

Frequently Asked Questions

How do I use the Complete the Sentence exercise?
A sentence appears with a blank space. Choose the correct word from four options to fill the gap. You have 20 seconds per question. Your score increases with each correct answer, and a streak multiplier rewards consecutive correct choices.
How many sentences are in Complete the Sentence?
The exercise contains 35 sentences, and 20 are selected at random each session. This keeps every practice session fresh and ensures broad coverage of different grammar points.
Do I type my answer or click from options?
You click one of four provided options. This multiple-choice format lets you focus on recognising the correct grammar pattern without worrying about spelling, making the exercise suitable for all levels.
What grammar areas does Complete the Sentence cover?
Sentences test conditionals, passive voice, present perfect vs simple past, prepositions, articles, verb patterns (suggest + -ing, look forward to + -ing), comparatives, and collocations such as make/do/take/give.
What CEFR levels does Complete the Sentence target?
The exercise spans A2 to C1. Easier questions target basic tense and preposition use (A2–B1), while harder questions cover complex patterns like subjunctive conditionals, modal perfects, and academic collocations (B2–C1).
Is there instant feedback after each answer?
Yes. After selecting an option, the correct answer is highlighted immediately and the blank fills in with the right word. Wrong answers show the correct answer in green so you learn the correct form before moving on.
Is there a hint system in Complete the Sentence?
There is no separate hint button, but the sentence context itself acts as a hint — the words before and after the blank provide strong clues about the required grammar or vocabulary.
Why does gap-fill help with English grammar?
Gap-fill exercises require active recall — retrieving the correct form from memory rather than recognising it passively. Research in learning science consistently shows that active retrieval builds far more durable memory traces than re-reading grammar rules.
Can I use Complete the Sentence for exam preparation?
Yes. The exercise closely mirrors gap-fill tasks in Cambridge B2 First, C1 Advanced, and IELTS Academic Writing tests. Regular practice with this format builds both accuracy and the timed decision-making required in exam conditions.
How does Complete the Sentence compare to Cloze Dropdown?
Complete the Sentence presents isolated sentences with a 20-second timer, making it faster-paced and focused on discrete grammar points. Cloze Dropdown uses full reading passages with no timer, developing vocabulary in context and discourse-level reading comprehension.
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About Complete the Sentence

Each question shows an English sentence with one word missing, marked by a blank line. Choose the correct word from the four options provided. You have 20 seconds — the faster you answer correctly, the more bonus points you earn.

Sentences cover common English grammar patterns, collocations, prepositions, verb forms, and vocabulary in context. Build your streak for an increasing point multiplier!