The Sentence Completion task in the IELTS Reading test is a common question type that checks your ability to understand detailed information and locate specific words in the text. Many test-takers find it tricky due to vocabulary confusion, paraphrasing, and strict word limits.
In this blog, we’ll explore practical strategies to help you succeed in Sentence Completion questions and avoid common traps.
This Blog Includes
ToggleWhat Is the Sentence Completion Task?
In this task, you’re given incomplete sentences and asked to complete them using words from the passage. Instructions usually state a word limit such as:
“NO MORE THAN TWO WORDS AND/OR A NUMBER from the passage.”
The sentences follow the order of information in the passage, making it easier to locate where the answers are—but harder to match the exact wording from the text.

Common Challenges Faced by Test-Takers
- Overlooking Word Limits
Writing more words than allowed results in an automatic incorrect answer.
- Vocabulary Mismatch
The passage may paraphrase ideas, so you’ll need to recognize synonyms or rephrased concepts.
- Grammar Inconsistency
Using a grammatically incorrect word form (e.g., plural vs singular) can make your sentence invalid.
- Time Pressure
Spending too much time on this section may eat into your overall reading time.

Step-by-Step Strategy for Answering
✅ 1. Read the Instructions Carefully
Check the maximum number of words allowed and whether numbers are acceptable.
✅ 2. Read the Incomplete Sentence First
Before going to the passage, try to guess the type of information you need (e.g., date, name, reason).
✅ 3. Locate the Keyword in the Passage
Scan the text for key terms related to the sentence. Remember, answers appear in order.
✅ 4. Read Around the Keyword
Focus on the sentence before and after your keyword to find clues.
✅ 5. Match Grammar and Meaning
Choose words that complete the sentence logically and grammatically.
✅ 6. Double-Check Word Count
If the instruction says “NO MORE THAN TWO WORDS,” don’t write three!

Example and Practice Tips
📝 Example Task:
Complete the sentence below using NO MORE THAN TWO WORDS from the passage.
The main reason for the project delay was __________.
📚 From the Passage:
“The heavy rainfall during construction made it impossible to continue work on the site.”
✅ Correct Answer: heavy rainfall
⚠️ Not the heavy rainfall (too many words) or rain (not specific enough).
Practice Tips:
- Train your eye to scan quickly for keywords.
- Read various types of academic texts: science, history, culture.
- Practice using IELTS-specific reading materials, like those from IStudentPlus.

IStudentPlus: Helping You Prepare Smarter
IStudentPlus provides expert guidance and targeted practice for your IELTS preparation, including:
- ✅ Customized Reading Practice
Based on your weak points, including Sentence Completion tasks.
- ✅ Tips from IELTS Trainers
Get insider advice on how to tackle different question types efficiently.
- ✅ Mock Tests & Feedback
Simulate real IELTS conditions and receive professional feedback on your answers.
- ✅ Flexible Online Classes
Join live or recorded classes anytime to sharpen your reading skills.
With IStudentPlus, your IELTS preparation is organized, strategic, and stress-free.

FAQs
Q: What happens if I write more words than allowed?
A: Your answer will be marked incorrect—even if the information is right.
Q: Can I write the answer in capital letters?
A: Yes, it’s acceptable to write answers in all caps to improve readability.
Q: Are answers always exact words from the passage?
A: Yes, for Sentence Completion you must copy the word(s) exactly from the passage.
Q: How can IStudentPlus help with reading practice?
A: Through guided exercises, feedback, and test strategies tailored to your skill level.