1.has never gone
2.was/was
3.was/discovered
4.has never had
5.did he see
6.have you played
7.did you see a ghost later?
8.did they go to.....
9.did you cook anything.......
10.did you play
11.did you live
12.were we late.....
13.did you eat
14.has she had
15.was
16.have been
17.was
18.got/turned
19.have played/was
20.visited hoặc went to visit a farm........