单项选择
-It’s difficult for the village children to cross the river for school.
-I think a bridge(桥)______over the river.
A.should be built B.is being built C.has been built D.was built
单项选择
-It’s difficult for the village children to cross the river for school.
-I think a bridge(桥)______over the river.
A.should be built B.is being built C.has been built D.was built
A