4- Why …does.. Tom ( buy ) .........buying.................. that book last Tuesday?
5. I (remember).....remember................... your trip to Nha Trang two years ago.
6. Ba ( not wear)........doesn't waer..................... the cap all day everyday.
7. I ( not eat)............don't eat.............. a lot of fish yesterday.
8. Her aunt (take)............takes....................... her to see Cham Temple for 2 years .
9. …Does……..Tuan (have)............have.................. a new bike yesterday?
10. She (not buy)......doesn't buys............................ a new ruler yesterday.
11. He (not talk)........don't talk.................... with his parents now
12. They (not come).......don't come........................... school next day
13. The windows (not close).....don't close....................... since 2005
14. We (not stay)............don't stay.......................... at home at 7 pm last Monday.
15. She (not drink).............doesn't drink................................ milk yesterday.
16……How does…... Lan ( go)...............go to..............Ho Chi Minh city two years ago?