第四部分:单项选择(共10小题.每题1分.共10分) for our teachers, we’d never have been able to enter

第四部分：单项选择（共10小题，每题1分，共10分）

______ for our teachers, we’d never have been able to enter this university.

A. Had it not been  B. Had it not

C. If it was not       D. If he had not been

试题答案

A