专四

单选题__________ the road,and you will come to the post office.

A. If you were to turn off
B. Turn off
C. Turning off
D. Having turned off

参考答案:B进入在线模考
译文:拐过这条路,就到了邮局。
句子结构题。后边句子有and引导,说明前边也是一个单独的句子,四个选项中只有[B]能构成一个祈使句;[A]是一个状语从句;[C]、[D]均为非谓语动词,这三个选项只有在后文没有and时才可能成立。