Всем привет, помогите пожалуйста сделать задание.

1. Their son is a driller.
2. He has a bag.
3. These boys are students.
4. My friends will be introduced to my parents by me tomorrow.
5. The museum was visited by them last Sunday.
6. The examinations is seldom passed by him well.
7. The library was rarely visited by the students last year.
8. The cake was being cooked by my mother all evening yesterday.
9. She had finished her work when we came in.
10. I have never been to the USA.
11. The letters have already been written by her.
12. By 9 о’clock yesterday I had already sent all the letters.
13. They have not translated this text yet.
14. We are students of the college.
15. Had you switched off the light before you left the house?

Задание. Заполните пропуски правильной формой глагола be или have.
1. Their son is a driller.
2. He has a bag.
3. These boys are students.
4. My friends will be introduced to my parents by me tomorrow.
5. The museum is visited by them last Sunday.
6. The examinations is seldom passed by him well.
7. The library is rarely visited by the students last year.
8. The cake was being cooked by my mother all evening yesterday.
9. She had finished her work when we came in.
10. I have never been to the USA.
11. The letters are already been written by her.
12. By 9 о’clock yesterday I had already sent all the letters.
13. They have not translated this text yet.
14. We are students of the college.
15. Have you switched off the light before you left the house?

1. is
2. has
3. are
4. be
5. was
6.were
7. was
8. being
9. had
10. have
11. have
12.had
13.have
14.are
15.had