Please solve question no.(b),(c) and (d)(I have my exams tommorow)

Dear Student,
Given below are the answers to two of your questions. Kindly post the other one in a new and separate thread.

B)

1. down
2. after
3. up
4. through
5. to
6. down
7. from
8. in

C)

1. Nobody has an idea as to what happened at the match?
2. We hired the accountant as he was clever.
3. It was careless of her to have forgotten her car keys.
4. We will go out for a picnic if your parents will agree.

Regards.