--It’sdifficultforthevillagechildrentocrosstheriverfors...
來源：國語幫 1.2W
問題詳情：
--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
知識點：動詞語態
題型：選擇題
