The reason he did not come was he was ill.A. that; whyB. that; thatC. why; thatD. why; whi

问题补充：

The reason he did not come was he was ill.

A. that; why

B. that; that

C. why; that

D. why; which

答案：

A. that; why

B. that; that

(答案→)C. why; that

D. why; which

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