Выберите либо For либо since

1 Underline the correct answer.

0. Sam hasn't been on a camping trip for a long time.

1. We vet has not been here since last week.

2. We have known Alice since we started going to the same school.

3. Device has played the piano for five years.

4. Mum has been out since 10 o'clock.

5. I haven't seen Monica for a few days