It was you had done made it possible for you to improve your English.A. that/ thatB. that

问题补充：

It was you had done made it possible for you to improve your English.

A. that/ that

B. that / what

C. what/ what

D. what/ that

答案：

A. that/ that

B. that / what

C. what/ what

(答案→)D. what/ that

解析：可联系答.案.网客服索取。