--- 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 |
--- 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 |