单项选择题

This is one of the longest bridges that ______ on this river.

A．is ever built
B．was ever built
C．has ever been built
D．has ever built
<上一题 目录 下一题>
热门 试题

单项选择题
Little ______ that the police are about to arrest him.
A．he knows
B．he doesn't know
C．does he know
D．doesn't he know
单项选择题
Since the introduction of the new technique, the production cost ______ greatly.
A．reduces
B．is reduced
C．is reducing
D．has been reduced
相关试题