One of the common question types in the IELTS Reading test is “sentence completion.” Many students find this task challenging because it requires careful reading, precise understanding of details, and good vocabulary skills. But with the right strategies and regular practice, you can master it with confidence. In this blog, we’ll explore tips, techniques, and common traps to avoid so you can boost your reading score.
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ToggleWhat is Sentence Completion in IELTS Reading?
Sentence completion requires you to fill in the gaps in incomplete sentences using words from the reading passage. The instructions will tell you how many words you can use (e.g., NO MORE THAN TWO WORDS). This task tests your ability to find specific information and understand details or main ideas.

Why Students Struggle with Sentence Completion
Many students face difficulty with this task because:
- They don’t follow the word limit rules
- They rely on memory rather than locating the answer in the text
- They get confused by paraphrasing and synonyms
- They misread or misunderstand the sentence structure

Step-by-Step Strategy for Completing Sentences
- Read the instructions carefully – Pay attention to how many words you’re allowed.
- Quickly scan the sentence – Understand what kind of word (noun, verb, adjective) is missing.
- Skim the passage – Identify the paragraph where the information is likely located.
- Read carefully for details – Look for keywords and synonyms in the passage.
- Write your answer exactly from the text – Spelling matters. Don’t change the form of the word.
- Re-read the sentence with your answer – Make sure it makes grammatical sense.

Common Mistakes and How to Avoid Them
- ❌ Writing too many words – Always count your words. “The solar power energy” is four words!
- ❌ Changing word forms – If the passage says “run,” don’t write “running” unless it fits grammatically.
- ❌ Guessing from memory – Always base your answer on what you find in the text, not what you think you remember.

Sample Practice and Model Answers
Sentence: The university provides free ______ for all new international students.
From the passage: “All new international students are offered free orientation programs during their first week.”
✅ Answer: orientation programs
Sentence: Students must submit the application form no later than ______.
From the passage: “Application forms must be submitted by July 15th.”
✅ Answer: July 15th

How IStudentPlus Helps You Improve Reading Skills
At IStudentPlus, we offer dedicated support to help you succeed in your IELTS journey, including:
- Reading practice worksheets and answer keys
- Personalized feedback and correction
- Weekly IELTS strategy sessions
- Access to free mock tests
- Vocabulary and paraphrasing exercises
Whether you’re preparing for Academic or General Training, IStudentPlus gives you the tools to read smarter, not harder.

FAQs
Q: How many words can I write in a sentence completion answer?
A: It depends on the instructions. It will usually say “NO MORE THAN ONE WORD” or “NO MORE THAN TWO/THREE WORDS.”
Q: Can I change the word form?
A: No. You must use the exact word from the passage without changing it.
Q: Does spelling matter in IELTS Reading?
A: Yes! Incorrect spelling will be marked wrong.