题目内容：

Another two months will be needed before the new bridge -------------. A completesB is completed C
选哪一项,为什么?

优质解答

Another two months will be needed before the new bridge (is completed.
还要两个新桥才能竣工.
后面要用is completed而不能用completes,因为桥自己是不会建的,因此要用被动的形式