1. exercise → exercises
2. rule → rules
3. practise → practice (or keep as 'practise' if using British English, but 'practice' is more common in American English which the text seems to follow)
4. you can → you will
5. good → is good
6. easy → easier
7. world → the world
8. Use computers is → Using computers is
9. fluent → fluent (no error here, but if forced to correct, perhaps "fluent" is fine; however, the phrase "if your English is fluent" is grammatically correct)
10. doing → do
11. doesn’t → don’t
12. You will able → You will be able
13. a lot of → many (to match "films and songs")
14. know → know (no error here)
15. Being able to speak more one language → Being able to speak more than one language
16. make an effect → make an effort
17. proofreading → proofreading (no error here)
18. careful → carefully
19. (No 19th error found — possibly a miscount; the last sentence has “make an effect” and “careful” as errors, already corrected above)
20. (No 20th distinct error — the text ends with “careful.” which should be “carefully.”)
Parent Tip: Review the logic above to help your child master the concept of proofreading worksheet for adults.
