HELP ME PLEASE!1Why did I listen to you? I___at home by

HELP ME PLEASE!
1Why did I listen to you? I___at home by now instead of sitting here in the cold.
a) can be
b) could have been
2. I__my diary for days. Didnt you see it?
a) havent been able to find
b) couldnt have found
3. You__thirsty after carrying those heavy boxes. ShalI make some tea?
a) must be
b) must have been
4. Were getting a new sofa and the store ____it today.
a) may be delivering
b) must be delivering .
5. It_him. He said hed phone if he passed his exam.
a) must
b) might be
6. It __hers. She never wears real fur.
a) might be
b) cant be
7. Your purse___in the car. You often leave it there.
a) might be
b) cant be
8. It ___ have been Peter. Hes at school.
a) might b) cant
9. I ___ have posted these letters this morning, really.
a) must
b) should
10. IVe brought you a present. Oh, you_.
a) neednt have bothered
b) neednt bother
11. Im going to Marys birthday party. Do you think I__ take her a present?
a) must b) ought to
12. What are you doing here?_you be at the meeting?
a) Shouldnt, b) Neednt