Дополните предложения словами for или since. Complete the sentences with for or since.

Решение:

For используется для обозначения периода времени (сколько длится действие). Since используется для обозначения момента начала действия (с какого момента длится действие).

1. We have been friends for ten years.
2. She has lived in London since 2015.
3. He has been a teacher for five years.
4. They have been married since last June.
5. I haven't seen him for a long time.
6. It has been raining since morning.
7. My sister has worked here for two months.
8. We have known each other since childhood.
9. He hasn't eaten anything for two days.
10. She has been ill since last Monday.

Ответ: for, since, for, since, for, since, for, since, for, since.