56. for our teachers, we’d never have been able to enter this university.A. Had it not be

56. 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

(答案→)A. Had it not beenB. Had it notC. If it was notD. If he had not been解析：可联系答案网客服索取此答案。

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