问题描述:
( )The teacher is so careful that he always loo
( )The teacher is so careful that he always looks over his exam exercises to______there are no mistakes in them.
A.look up B.make suere C.find out D.think about
( )The teacher is so careful that he always looks over his exam exercises to______there are no mistakes in them.
A.look up B.make suere C.find out D.think about
问题解答:
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