问题

Sometimes proper answers are not far to seek _____ food safety problem.
A: in
B: to
C: on
D: after
B: to
C: on
D: after
正确答案是:
同类题型
Since it was getting late, we decided to find a small inn to _______ for the night.
ne come to help you yesterday–Yes, but I would rather _________ She caused me alot of trouble
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We should ________ the light when you leave the room.— Yes. We must learn how to save electricity.