4. Complete the sentences with for and since. 1. I have known him _____ we were children. 2. They have been married _____ 20 years. 3. She has been sleeping _____ 9 o'clock. 4. We have been waiting _____ half an hour.

Перевод задания: Заполните предложения словами for и since.

For употребляется с периодом времени, а since — с моментом или началом периода.

1. I have known him since we were children. (Я знаю его с тех пор, как мы были детьми.)
2. They have been married for 20 years. (Они женаты уже 20 лет.)
3. She has been sleeping since 9 o’clock. (Она спит с девяти часов.)
4. We have been waiting for half an hour. (Мы ждём уже полчаса.)