1.are you/ am
2.Do you have
3.has just gone
4.Did you hear
5.have you known/ have known
6.Does he post
7.doesn't finish / has
8.haven't paid
9.have asked
10.have bought
Câu 2:
1.have you lived/ have lived
2.has lived/ went
3.wore
4.left/ have cut/ have wore
5.has written/has just finished
6.hasn't smoked
7.did you begin/ began/ was/ went/ have stayed/ went
8.have you worked/ have worked
9.bought/ haven't sold
10.went/ has worked/ went