Chia động từ

----- Nội dung dịch tự động từ ảnh -----
II Câu phủ định +S+ have not/ has not (....)
+ PP - ed/ c2
11. She............. her room. (not/ tidy up/yet) tidied
12. They...
a Tablet PC (not/use/so far)
13. My father....
.... the car. It is still dirty. (not/
polish)
14. The children.....
the comics (not/read/yet)
15. Jason and Tony.... the words, so they will probably
fail the test. (not/learn)
16. His mother .... ..... breakfast. (not/make/so
far)
17. I …......
18. My boss
19. He ........
wash)
20. Sarah.......
on a lake in winter. (not/ skate/yet)
the helpline. (never/phone)
his favourite T-shirt himself. (not/
her dog (not/ take out/yet)