–Why didn’t you go to the movie last night?_ Because I the film before..A. was seeingB. s

问题补充：

–Why didn’t you go to the movie last night?

_ Because I the film before..

A. was seeing

B. saw

C. have seen

Dhad seen

答案：

A. was seeing

B. saw

C. have seen

(答案→)D. had seen

解析：此题重点考查过去完成时的基本用法，及基本结构。Had+过去分词。