Выберите и обведите лексически правильные варианты из данных в скобках.
1. "I would like you to work in (pairs/couples)", the teacher said.
2. I think we must write a (complain/complaint).
3. Do you remember when computers were (invented/discovered)?
4. I don't live here (anymore/anyhow).
5. Are you sure Alice did it on (aim/purpose)?
6. I'll inform you of my decision after you give me some (proof/prove) of the
fact.
7. The (dumb/deaf) cannot hear.
8. I'm sure your brother (gets/is) tired when he works at night.