Answer:
1. forces at work within a society
2. contact between societies
3. changes in the natural environment
Explanation:
1a) We've Been here FOR an hour.
1b) We've been here SINCE 4 o' clock.
2a)She hasn't spoken to me FOR 2 weeks.
2b) She hasn't spoken to me SINCE last week.
3a) They've live in this street SINCE 1970.
3b) They've lived in this street FOR a long time.
4a)I haven't had time to do it SINCE last Monday.
4b) I haven;t had time to do it FOR a few days.
5a) We haven't bought a new on SINCE ages.
5b) We haven't bought a new one FOR many years.
Answer:
I would go with B. It isn't C or D.
Explanation:
If B is wrong and you do it over chosse A, but the first time choose B. Fingers crossed it's right.
