1.Have John ever won
2.fell/was watching
3.has never been
4.has been
5.did
6.go
7.worked
8.haven't found/lost
9.built
10.have just had
11.was playing/was taking
12.have not seen
13.is playing/has he played
14.Do you speak
15.were working/rang
Chúc học tốt
Vote mình 5* và ctlhn nhé.Cảm ơn cậu!