IEO Cheat Sheet 2026

The 30 highest-yield IEO facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Which sentence contains a SPELLING error? → The principle of the school arrived.
2. Choose the correct plural form of 'phenomenon': → Phenomena
3. What is the ANTONYM of 'ARROGANT'? → Humble
4. Choose the correct sentence: → Neither the boys nor the girl is present.
5. The word 'setting' in a story refers to: → The time, place, and environment of the story
6. The idiom 'a penny for your thoughts' means: → Asking someone to share what they are thinking
7. Which word means 'to formally approve or ratify'? → Sanction
8. Choose the SYNONYM of 'ANCIENT': → Antique
9. Which sentence uses the correct subject-verb agreement? → The team is playing well.
10. What does 'concise' mean? → Brief and to the point
11. Which sentence correctly uses the past perfect tense? → She had finished her homework before dinner.
12. Passage: 'The river that had been dry for months filled rapidly after the rainfall.' What can be inferred? → Rainfall is the source of water for the river.
13. Passage: 'Priya reached the station only to find the platform empty and the clock showing 10:05.' What can be inferred? → The train had already departed.
14. When writing a title of a book, which rule applies? → Capitalize the first word and all major words
15. The tone of a passage refers to: → The author's attitude toward the subject
16. The phrase 'break a leg' is commonly used to mean: → Good luck
17. Choose the word with the correct spelling: → Occurrence
18. Which sentence is in the passive voice? → A delicious meal was cooked by the chef.
19. Which of the following words is spelled correctly? → Accommodate
20. Which word has the 'ough' pronounced as in 'through'? → Though
21. Passage: 'The park that once echoed with children's laughter was now silent.' What does this convey? → The park has changed and is no longer lively.
22. Passage: 'The street vendor packed his goods as dark clouds gathered overhead.' What does this suggest? → The vendor expected it to rain and was protecting his goods.
23. Choose the correct word formed by adding the prefix 'un-' to 'necessary': → Unnecessary
24. What is the meaning of the word 'OBSOLETE'? → No longer in use
25. What is the purpose of a semicolon in a sentence? → To join two closely related independent clauses
26. What part of speech is the underlined word in: 'The old man walked SLOWLY along the river'? → Adverb
27. What is the past tense of place? → Placed
28. What does 'diligent' mean? → Hardworking and careful
29. Identify the word with INCORRECT spelling: → Priviledge
30. Read: 'Maria had not eaten anything since morning. She stared at the bread in the shop window.' What does Maria MOST LIKELY feel? → Hunger