Bài 26 :
have -> has
be -> is
be -> is
like -> likes
never/bite -> never bites
bark -> barks
be -> is
not/like -> doesn't like
often/play -> often plays
become -> becomes
just/sleep -> just sleeps
play -> plays
be -> are
not/let -> doesn't let
often/take -> often takes
sometimes/be -> sometimes is
Ex27 :
1. go
2. visit
3. play
4. works
5. tells
6. helps
7. swim
8. dance
9. takes care
10. leaves
11. live
12. travels
13. bake
14. teach
15. helps
16. fly
17. are
18. has
19. doesn't study
20. doesn't/worrk
