These essential MCQ questions are selected from the most important topics in the IEO (International English Olympiad) examinations 2026 conducted by SOF (Science Olympiad Foundation). Sections include Word and Structure Knowledge, Reading, Spoken and Written Expression and Achievers Section for students of Class 1 to Class 12. For truely unlimited daily MCQ practice, visit Vooo AI Education.
📖 English Olympiad IEO
1Choose the correct spelling:
Answer: C — Grammar
The correct spelling is "Grammar" — with double m and ending in -ar (not -er). Common misspelling tip: remember "gramm-ar" has two m's. Other commonly misspelled words: accommodation (double c, double m), necessary (one c, double s), separate (not seperate).
The correct spelling is "Grammar" — with double m and ending in -ar (not -er). Common misspelling tip: remember "gramm-ar" has two m's. Other commonly misspelled words: accommodation (double c, double m), necessary (one c, double s), separate (not seperate).
2The plural of "child" is:
Answer: B — Children
"Children" is the irregular plural of "child." English has many irregular plurals that don't follow the standard -s/-es rule: man/men, woman/women, mouse/mice, tooth/teeth, foot/feet, goose/geese, ox/oxen, child/children. These must be memorised individually.
"Children" is the irregular plural of "child." English has many irregular plurals that don't follow the standard -s/-es rule: man/men, woman/women, mouse/mice, tooth/teeth, foot/feet, goose/geese, ox/oxen, child/children. These must be memorised individually.
3Choose the correct sentence:
Answer: C — She doesn't know the answer
"She doesn't know the answer" is correct. With third person singular subjects (he/she/it), use "does/doesn't" for negatives and questions. "Don't" is used with I/you/we/they. Never add -s to the main verb when using does/doesn't: "doesn't know" not "doesn't knows."
"She doesn't know the answer" is correct. With third person singular subjects (he/she/it), use "does/doesn't" for negatives and questions. "Don't" is used with I/you/we/they. Never add -s to the main verb when using does/doesn't: "doesn't know" not "doesn't knows."
4The antonym of "ancient" is:
Answer: C — Modern
An antonym is a word with opposite meaning. "Ancient" means very old or from the distant past. Its antonym is "Modern" — relating to the present or recent times. Other antonyms of ancient: contemporary, new, recent, current. Synonyms of ancient: old, archaic, prehistoric, primeval.
An antonym is a word with opposite meaning. "Ancient" means very old or from the distant past. Its antonym is "Modern" — relating to the present or recent times. Other antonyms of ancient: contemporary, new, recent, current. Synonyms of ancient: old, archaic, prehistoric, primeval.
5Which sentence uses the correct tense?
Answer: B — I went to school yesterday
"I went to school yesterday" uses the Simple Past tense, which is correct for a completed action at a specific time in the past ("yesterday"). Simple Past = verb + -ed for regular verbs (went is irregular past of go). "Yesterday" signals the need for Simple Past tense.
"I went to school yesterday" uses the Simple Past tense, which is correct for a completed action at a specific time in the past ("yesterday"). Simple Past = verb + -ed for regular verbs (went is irregular past of go). "Yesterday" signals the need for Simple Past tense.
6The synonym of "enormous" is:
Answer: B — Gigantic
A synonym is a word with a similar meaning. "Enormous" means extremely large. Its synonym is "Gigantic" — of very great size. Other synonyms: huge, colossal, mammoth, immense, vast. Antonyms: tiny, minute, microscopic, small. Synonyms are key vocabulary tested in IEO Olympiad.
A synonym is a word with a similar meaning. "Enormous" means extremely large. Its synonym is "Gigantic" — of very great size. Other synonyms: huge, colossal, mammoth, immense, vast. Antonyms: tiny, minute, microscopic, small. Synonyms are key vocabulary tested in IEO Olympiad.
7Choose the correct article: "She is __ honest woman."
Answer: B — an
"An" is correct before words beginning with a vowel sound. "Honest" begins with a silent "h" so the vowel sound is "o" — making it "an honest." Rule: use "an" before vowel sounds (a, e, i, o, u sounds), not just vowel letters. Examples: an hour (silent h), a university (y-sound not vowel sound).
"An" is correct before words beginning with a vowel sound. "Honest" begins with a silent "h" so the vowel sound is "o" — making it "an honest." Rule: use "an" before vowel sounds (a, e, i, o, u sounds), not just vowel letters. Examples: an hour (silent h), a university (y-sound not vowel sound).
8Identify the noun in: "The beautiful garden was full of flowers."
Answer: C — garden
"Garden" is the noun — it names a place/thing. "Beautiful" is an adjective (describes garden), "full" is an adjective (predicate adjective), "was" is a verb (linking verb). Nouns name persons, places, things or ideas. In this sentence "flowers" is also a noun.
"Garden" is the noun — it names a place/thing. "Beautiful" is an adjective (describes garden), "full" is an adjective (predicate adjective), "was" is a verb (linking verb). Nouns name persons, places, things or ideas. In this sentence "flowers" is also a noun.
9"To bite the bullet" means:
Answer: B — To endure a painful situation bravely
"To bite the bullet" is an idiom meaning to endure a painful or difficult situation with courage. The phrase originated from the practice of having soldiers bite on a bullet during surgery without anaesthesia. IEO Olympiad tests idioms extensively as they form an important part of English language proficiency.
"To bite the bullet" is an idiom meaning to endure a painful or difficult situation with courage. The phrase originated from the practice of having soldiers bite on a bullet during surgery without anaesthesia. IEO Olympiad tests idioms extensively as they form an important part of English language proficiency.
10Which is the correct passive voice of "The teacher taught the students"?
Answer: A — The students were taught by the teacher
Active: The teacher taught the students. Passive: The students were taught by the teacher. Formula: Object + was/were + past participle + by + subject. "Taught" is both simple past and past participle of "teach." In passive voice, the object of the active sentence becomes the subject.
Active: The teacher taught the students. Passive: The students were taught by the teacher. Formula: Object + was/were + past participle + by + subject. "Taught" is both simple past and past participle of "teach." In passive voice, the object of the active sentence becomes the subject.
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