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Gap Fill — ESL Grammar and Vocabulary Practice
What is the Gap Fill game?
Gap Fill presents students with a sentence containing a missing word. In MCQ mode they choose the correct answer from four options; in Written mode they type it directly. Each question includes an explanation of why the correct answer is right — building grammatical awareness, not just correct guessing.
Questions are drawn from the ESLe College grammar and vocabulary database, targeting the grammar structures and vocabulary items most frequently tested in IGCSE ESL, IB English B and Cambridge B2 First examinations.
How to play
Read the sentence carefully, paying attention to the context around the gap. Choose or type the answer that completes the sentence correctly. After answering, read the explanation to understand why that answer is correct before pressing Next.
- Switch between MCQ and Written mode using the dropdown
- Filter by level to match questions to your exam
- 15 questions per session by default — adjust using the dropdown
- Explanations are shown after every answer — right or wrong
- Timed mode adds a 30-second countdown per question
- Score and streak are tracked throughout the session
Why gap fill is essential exam practice
Gap fill tasks appear directly in Cambridge B2 First Use of English Part 1 and IGCSE ESL reading papers. Practising regularly with authentic-style questions builds the pattern recognition students need to work quickly and confidently under exam conditions. Reading the explanation after each answer transforms a quiz into a learning moment — students understand the grammar rule, not just the correct answer.