—It’s difficult for the villagers to cro
题型:选择题
问题:
—It’s difficult for the villagers to cross the river for market.
—I think a bridge _________ over the river.
A.was built
B.is being built
C.has been built
D.should be built
—It’s difficult for the villagers to cross the river for market.
—I think a bridge _________ over the river.
A.was built
B.is being built
C.has been built
D.should be built