题目内容
There is an old bridge __________the river. Be careful (小心) when you ________________ it.
A.over; across B.over; cross C.on; cross D.on; across
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题目内容
There is an old bridge __________the river. Be careful (小心) when you ________________ it.
A.over; across B.over; cross C.on; cross D.on; across