ответ:1. B
2. A
3.B
4.A
5.B
6. A
7.A
8. B
9.B
10. A
Объяснение:
1. Cheese is made from milk.
2. The letters were written yesterday.
3. My secretary opens the mail every morning.
4. A firefighter rescued the young girl.
5. Caroline walks the dogs every morning.
6. The doctor was sent.
7. Can I borrow your pen? Mine doesn't work.
8. I must go to the bank. I haven't got any money.