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. Didn’t you see it?
a) haven’t been able to find
b) couldn’t have found
3. You__thirsty after carrying those heavy boxes. ShalI make some tea?
a) must be
 b) must have been
4. We’re getting a new sofa and the store ____it today.
a) may be delivering
 b) must be delivering .
5. It_him. He said he’d phone if he passed his exam.
a) must
 b) might be
 6. It __hers. She never wears real fur.
a) might be
b) can’t be
7. Your purse___in the car. You often leave it there.
a) might be
 b) can’t be
8. It ___ have been Peter. He`s at school.
a) might b) can’t
9. I ___ have posted these letters this morning, really.
 a) must
b) should
10. I’Ve brought you a present. — Oh, you_.
a) needn’t have bothered
b) needn’t bother
11. I’m going to Mary’s 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) Shouldn’t, b) Needn’t