问题
选择题
________ he can't understand is ________ his son doesn't like the school.He is very upset about this. [ ]
A. That; why
B. Why; that
C. What; why
D. Whether; that
答案
答案：C
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________ he can't understand is ________ his son doesn't like the school.He is very upset about this. [ ]
A. That; why
B. Why; that
C. What; why
D. Whether; that
答案：C