??It is not easy ____ the answer to the difficult math probl

时间:2022-07-15 16:48来源:未知作者:admin 点击: 次

8.??It is not easy ____ the answer to the difficult math problem. A. to figure out B. figuring out C. figure out D. being figured out

8.??It is not easy ____ the answer to the difficult math problem.

A. to figure out

B. figuring out

C. figure out

D. being figured out

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