Записать в passive
1. they asked us about our plans
2. has your sister received the letter?
3. they have already written the letter
4. my mother sent for a docror
5. she did not meet her frind yesterday
6. you will listen to this lecture tomorrow

Объяснение:

1. We were asked about our plans by them

2.Has the letter been recieved by your sister?

3. The letter has been already written by them

4. A doctor was sent for by my mother.

5. Her friend wasn't met by her yesterday.

6. This lecture will be listened by you tomorrow