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IEO — International English Olympiad

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IEO — International English Olympiad

SOF IEO practice — grammar, vocabulary & comprehension

20-question mock20 min— pass markIndia

Single questions with instant feedback — no timer, learn as you go.

Exam blueprint

What this exam covers

6 topics · drawn across your practice and mock
01Word and Structure Knowledge
25%5 questions
02Spelling and Vocabulary
25%5 questions
03Reading Comprehension
15%3 questions
04Spoken and Written Expression
15%3 questions
05Logical Reasoning
15%3 questions
06Achievers Section
5%1 question
Your study path
Master this exam, topic by topic
Drill one topic at a time. After each session you'll see where you went wrong and can retake until you've got it.
Questions per session
View full mastery board →
Official source
SOF
The Science Olympiad Foundation conducts the IMO, NSO, IEO and NCO olympiads.
AceMark is an independent practice tool, not affiliated with the exam authority. Always confirm the current syllabus, fees and dates on the official site.
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Frequently asked questions

Is the IEO — International English Olympiad practice test free?

Yes. The core IEO — International English Olympiad practice on AceMark is free to start — no credit card needed. Sign in (takes 10 seconds) if you'd like to track your progress, save attempts, and unlock the Mentor. Otherwise, browse and explore questions without an account.

How many questions are in the IEO — International English Olympiad quiz?

Each IEO — International English Olympiad attempt draws 20 questions and runs for about 60 minutes under realistic timed conditions.

Can I retake the IEO — International English Olympiad test, and are the questions randomised?

Yes. Every attempt pulls a fresh, randomised set of questions, so you can't memorise your way through — you retake it until you genuinely know the material.

What score do I need to pass the IEO — International English Olympiad?

The pass mark used in this simulation is —. AceMark scores every attempt instantly and shows which topics to review.