This is one of the longest bridges that ______on this river.A is _英语解答

This is one of the longest bridges that ______on this river.
A is ever built B have ever been built C was ever built D has ever been built
选B 为什么不选D 不是单三么?

人气：254 ℃　时间：2019-11-17 22:17:25

解答

这种情况下（one of ...s) 后面的定语从句修饰的是后面的复数名词.