1) i've felt, gone
2) spend
3) did you ever spend
4) met
5) visited
6) visited
7)got
8) did you take
9) was
10) не уверена но вроде будет "have you been..."
11) left, was
12) he hasn't yet to come back
13) has he go already?
14) see
15) i haven't seen
16) improved, seen
17) have you pass, passed, haven't buy a car yet
18) moved, found, he has been
не уверена что здесь всё правильно, извините