问题
选择题
It is ____ he often fails in exams ____ makes his parents worried about him. [ ]
A. what; that
B. that; what
C. that; that
D. /; that
答案
答案：C
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It is ____ he often fails in exams ____ makes his parents worried about him. [ ]
A. what; that
B. that; what
C. that; that
D. /; that
答案：C