Complete with: for or since. 1 He has been an actor ..... twenty years. 2 She has known him...... 1996. 3 Brian has lived in Oslo..... he was a child. 4 They have worked in the film industry.... fifty years. 5 She's been upset..... last night.

1. He has been an actor for twenty years. (twenty years – период времени)
2. She has known him since 1996. (1996 – точная дата)
3. Brian has lived in Oslo since he was a child. (he was a child – момент времени)
4. They have worked in the film industry for fifty years. (fifty years – период времени)
5. She's been upset since last night. (last night – момент времени)

Проверка за 10 секунд: Запомните, что 'for' используется с периодами времени, а 'since' - с конкретными моментами времени.