I didn't go to see the film yesterday,because I______it thre

題目：

I didn't go to see the film yesterday,because I______it three times.
A、had seen B、have seen C、saw D、will see
爲什麼用had seen 而不用have seen?

解答：

選A
前面是一般過去時,那麼發生在過去的過去,就要用過去完成時.
我昨天沒去看電影,因爲我已經看過三次了.