поставить глагол в правильную форму
don’t ask him to help now. he …( to do) his homework.
i can go for a walk. i ……( to do) my homework.
i … (to do) my homework two hours ago.
when pete …… ( to phone) mе (do) my homework.
i am tired. i ….. ( to do) my homework since morning.
i … to do) my homework for three hours and i …….(not\finish ) it yet.
1 is doing
2 have done
3 did
4 phoned,was doing
5 have been doing
6 have been doing, haven't finished