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Когда говорим о том, что произошло в течении какого-то времени, используем for: two years an hour a month a long time days
Когда указываем с какого времени что-то произошло используем since:
Cristmas 1999 Saturday I was 11 last weekend Ex. e
I have studied English since I was 11 years old. They have been married for 20 years. Ivan has had his bycicl since 2001. I haven't seen Mark for ages. Maria hasn't spoken to John since yesterday
Answers & Comments
two years
an hour
a month
a long time
days
Когда указываем с какого времени что-то произошло используем
since:
Cristmas
1999
Saturday
I was 11
last weekend
Ex. e
I have studied English since I was 11 years old.
They have been married for 20 years.
Ivan has had his bycicl since 2001.
I haven't seen Mark for ages.
Maria hasn't spoken to John since yesterday