1 We are /have been/ were sleeping for hours.
2. They have been/ were / are working here when the crisis began.
3. This is your dog, is it/ isn't there isn't it?
4. If I am/ had been/ were you, I wouldn't tell them.
5. When Mom got home, the guests had/have/ were already arrived.
6. Unless she takes/ doesn't take/ didn't take the bus, she won't get there on time.
7. What did /would do you say if she came ?
8. Look at the sky! It is raining will rain/ is going to rain !
9. She can't/ should/ might talk to her parents more often; communication is important!
10. Can you give me an/ some/ a few advice on where to go on my holiday ?
11. They don't make many/ much/ a lot of money, do they ?
12. You had been/ were / have been/ working since eight o'clock, right?.
13. Do it, don't/ will/shall you?
14. It's the good/ best/ better holiday ever !
15. I am walking/walk/ will walk to school every day.​