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--It’sdifficultforthevillagechildrentocrosstheriverfors...

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--It’sdifficultforthevillagechildrentocrosstheriverfors...

--It’s difficult for the village children to cross the river for school.

    --I think a bridge _______ over the river.

A. should be built        B. is being built     C. has been built          D. was built

【回答】

A

知识点:动词语态

题型:选择题

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