Question

present perfect passive ​

Answer 1

1. The books have already been taken to the library by me
2. The letters have just been posted by her
3. My test has already been checked by the teacher.
4. The key has been lost by him.
5. All the windows have been opened by us
6. Bread has been bought by me on the way home.
7. This exercise has been done by me.
8. The desks have been washed.
9. The flowers have been watered.
10. The floor has been mopped.

. Объяснение: