1why has he stopped?
2is looking,hasn't found
3has been
4what are you studying now?
5have just given
6is knitting
7have had
8are planting
9are you going to plant tomatoes this year?
10has found,is giving
11how long have you been seek?
12have you seen any good movies recently?
13what are you looking foward to?
14is looking
15is going to,isn't going
16had Mike left for work yet?
17have they paid their electric bill this month?
18how long have you known each other?
19is making