The Sentence Completion question type in the IELTS Reading test challenges you to fill in blanks with words from the passage. While it may look simple, it requires strong attention to detail, quick scanning skills, and an excellent understanding of the context.
At IStudentPlus, we guide students through every IELTS Reading task, including Sentence Completion. In this blog, we’ll explain how this question works, why it can be tricky, and how you can master it with smart strategies and focused practice.
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ToggleWhat Is Sentence Completion in IELTS?
In this task, you’ll be asked to complete sentences using a limited number of words taken directly from the reading passage.
Key features:
- The sentences summarize key points from the text
- You must stay within the word limit (e.g. “No more than two words”)
- Answers must come exactly from the passage
- Appears in both Academic and General Training IELTS

Common Mistakes Test Takers Make
Many students lose points because:
- They exceed the word limit
- They change the form of a word (e.g. from singular to plural)
- They guess instead of locating the exact phrase in the passage
- They fail to understand the sentence structure or grammar
Remember: even small grammar mismatches can make your answer incorrect.

Step-by-Step Guide to Getting It Right
Follow this simple approach to improve accuracy and speed:
1. Read the Instructions Carefully
Pay close attention to the word limit—if it says “No more than two words,” don’t write three.
2. Read the Incomplete Sentences
Try to understand the sentence’s meaning and what kind of word (noun, verb, adjective) is missing.
3. Predict the Missing Word(s)
Before you look at the passage, try to guess what kind of word fits logically.
4. Scan the Text for Keywords
Look for synonyms or paraphrased versions of the keywords near your sentence.
5. Match Grammar and Meaning
Make sure your answer fits grammatically and makes sense in the sentence.
6. Copy the Answer Exactly
Use the same spelling and word form from the passage. No changes!

How IStudentPlus Helps You Succeed
At IStudentPlus, we support you with more than just theory. Our IELTS programs help you:
- Understand every IELTS Reading task, including Sentence Completion
- Learn how to scan and skim texts effectively
- Practice with real exam-style questions
- Get personalized feedback and error correction
- Build test-day confidence through strategy-based coaching
Whether you’re aiming for a 6.5 or 8.0, we’re here to help every step of the way.

FAQs
Q: Can I use my own words for Sentence Completion?
A: No. Your answer must come directly from the passage without altering the form.
Q: How strict is the word limit?
A: Very strict. Writing even one extra word will make the answer incorrect.
Q: Do hyphenated words count as one or two?
A: Hyphenated words like “well-being” count as one word.
Q: How can IStudentPlus help me prepare?
A: We offer guided reading practice, grammar reviews, and detailed strategies for each IELTS Reading task.