题目内容
Bob is so careful with his homework that he always looks it over a few times to ________ there are no mistakes.
A. think of B. help out
C. make sure D. think about
C 【解析】句意:鲍勃对他的家庭作业非常细心,他总是反复检查,以确保没有错误。A. think of想起、认为;B. help out帮助解决问题;C. make sure确保、确信;D. think about考虑。根据he always looks it over a few times to ____ there are no mistakes.可知是他总是反复检查,以“确保”没有错误...
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