问题
选择题
This is the only answer _______right.[ ]
A. which we think is
B. what we think is
C. that we think is
D. what we think it is
答案
答案：C
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This is the only answer _______right.[ ]
A. which we think is
B. what we think is
C. that we think is
D. what we think it is
答案：C