Question

Помогите пожалуйста с английским языком

Answer 1

1. I have been doing my homework since 10 o'clock.
2. I haven't seen you for a long time.
3. I have known my best friend since 2004.
4. He hasn't seen Mary for ages.

for:10 minutes,a week,most of my life
since:Tuesday,last night,1st January