Giải giúp tớ bài 4 với ạ cmon nhiều ạ:((

1. are - reach

2. comes

3. came - had left

4. flies

5. have just decided - will undertake

6. would take

7. was

8. am attending - was attending

9. arrived - had waited

10. had left

11. got - had arrived

12. will see - see - will have graduated

13. visited - was

14. is - have you read

15. is washing - has just repaired

16. have you been - spent

17. have never met - looks

18. will have been - comes

19. found - had left

20. arrive - will be probably raining

21. is raining - stops

22. were watching - failed

23. stayed - lived

24. was sitting - was repairing

25. turned - went - forgot

26.has changed - came

27. were talking - started - broke

28. did

29. stood

CHÚC BẠN HỌC TỐT!!!️