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外语
It is not easy______the answer to the difficult math problem.
It is not easy______the answer to the difficult math problem.
admin
2019-07-18
30
问题
It is not easy______the answer to the difficult math problem.
选项
A、to figure out
B、figuring out
C、figure out
D、being figured out
答案
A
解析
It is做形式主语后面加to do形式,因此选A,其他选项不符合题意。
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0
成人本科学位英语
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