Question

We ___ for about an hour when it started to rain. A)had been playing B)were playing C) played D)is playing

Answer 1

Господи, прости, совсем уже туплю по вечерам.
Had been playing.
Мы играли примерно час, когда начался дождь.

Answer 2

Скорее всего B
We were playing an hour when is started to rain.