1.I have already done my homework
2.have done
3.he has just came home
4.he came home...
5.nick played football...
6.she has already came home...
7.have read
8.read this book...
9.I have never been to washington.
10.Have you ever been...
11.Have you ever seen...
12.I haven't yet ate today.
13.he didn't eat ...
14.did you play...
15.have you played...
16.what have you prepared...
16....mike has made...he has made it...