2. 外语
  3. It is not easy ______ the answer to the difficult math problem.

It is not easy ______ the answer to the difficult math problem.

admin2018-09-11  43
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 本题考查的是it作形式主语，真正的主语是to do。这种句型很常见，例如：It’s difficult to find a job these days. 如今找一份工作很难。
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