---It’sdifficultforthevillagechildrentocrosstheriverfo...
来源：语文精选馆 2.86W
问题详情：
--- 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
知识点：动词语态
题型：选择题
