It was I had to prepare for my exam that I didn't go to see the film Just Call Me Nobody

问题补充：

It was I had to prepare for my exam that I didn go to see the film Just Call Me Nobody (大笑江湖).

A. because

B. for

C. as

D. since

答案：

(答案→)A. because

B. for

C. as

D. since

解析：考查连词，这几个词都可以做“因为”讲，但是在强调句中，只能用because引导原因状语从句，句意：是因为我不得不准备考试我才不能去看电影。选A。