问题
选择题
I just wonder _______that upsets him so much.
[ ]
A. what it is
B. what he does
C. how it is
D. why it does
答案
答案：A
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I just wonder _______that upsets him so much.
[ ]
A. what it is
B. what he does
C. how it is
D. why it does
答案：A