I believe that flashbacks could be used to slow the pace of a story. If you are telling one story, and then decide to introduce a flashback, that would only slow down the story you are already telling.
The answer is the ancient Israelites
1) had been working, left
2) clears, will walk
3)had been reading
4)May
5)was to
6)have you been getting
7)are always complaining
8)was crossing, struck
9)graduated, began
10)are, will stop
11)must
12)should
13)didn’t have
14)can’t be solved
15)five
