Поставте глаголы в скобках в правильную форму: 1)how many exercises you (do) since you started your homework? 2)mrs izard (write) this book since her husband died. 3)you (know) this man? how long you (know) him? 4)we already (tank) about it for a week.it's time to do something ! 5)they (talk)for two hours and (not finish) yet. 6)mr dix is busy.how long he (be) busy? 7)caroline (think) about mark since he left. 8)how long you(have) this hat? i (have) it for years. 9)i (not see) your dog latery.what (happen)?

1)How many exercises have you done since you started your homework.
2)Mrs Izard has been writing this book since her husband died.
3)Do you know this man?How long have you known him?
4)We have already thanked about it for a week.It's time to do something !
5)They have been talking for two hours and have not finished yet.
6)Mr Dix is busy.How long has he been busy?
7)Caroline has been thinking about Mark since he left.
8)How long have you had this hat? I have had it for years.
9)I haven't seen your dog latery.What is happened?