The reason he was late for class is he didn’t catch the first bus.A. why; becauseB. why; t

问题补充：

The reason he was late for class is he didn’t catch the first bus.

A. why; because

B. why; that

C. that; because

D. which; that

答案：

A. why; because

B. why; that

C. that; because

D. which; that

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