题目内容
Please look over your paper carefully to ______ there are no mistakes.
A. find out B. think of C. make sure
C find out 表示“找出,查明真相”, 后面跟从句,think of表示“认为”, 后面跟名词或V-ing, make sure 表示“确保、确信” 后面跟that引导的从句,try out 表示“想出”,后面跟名词
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