Question

Another two months will be needed before the bridge _______.

A．completes	B．is completed
C．has completed	D．will be completed

Answer 1

B

试题分析：句意：桥完成前还需要两个月。桥是被完成的，应用被动语态，而before在……之前，用一般现在时表示将来，因此，选B。