The reason you failed I suppose was you didn’t follow your teacher’s advice.A. why; th

问题补充：

The reason you failed, I suppose, was you didn’t follow your teacher’s advice.

A. why; that

B. that; why

C. which; because

D. why; because

答案：

(答案→)A. why; that

B. that; why

C. which; because

D. why; because

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