C over.under
a bridge over the river,under the bridge请你记住就是了,是固定的用法了.
There is a small bridge _ the river and some ducks are swimming _ it.A.under; over B.over; ...
There is a small bridge _ the river and some ducks are swimming _ it.A.under; over B.over; ...
A.under; over B.over; below C.over,under D.on,behind
A.under; over B.over; below C.over,under D.on,behind
英语人气：315 ℃时间：2020-03-25 16:59:30
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