31. I just wonder that delights the whole family so much.A. what it isB. what he doesC. h

问题补充：

31. I just wonder that delights the whole family so much.

A. what it is

B. what he does

C. how it is

D. how he does

答案：

(答案→)A. what it is

B. what he does

C. how it is

D. how he does

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