Помогите решить. Срочно. 50 балов

1) B
2) B
3) A
4) B
5) B
6) B
7) B
8) A
9) A
10) A
11) B
12) B
13) B

1) was staying
2) had lost
3)studied
4)should finish
5)worked
6)was
7) was playing
8)would come
9)posted
10)would be
11)was
12)had bought
13)had seen