bài 3
1 got / would grow
2 be predicted
3 could choose / would go
4 had started
5 were / would be
bài 4
3. recognise --- recognised
6. did ---- had done
9. ask ---- asked
11. like --- as
13. telling --- had told
14. magnificent
15. stood --- standing
16. to take --- taking
18. by --- with
19. decide to V
20. while --- when
21. up --- over
22. freely -- free
23. to visit --- vistiting
27. was falling --- fell
