问题
选择题
.It was obviously that the man ______ driving on the free way for almost an hour when he ______ that he must come back.
A．was; was told
B．had been; was told
C．had been; told
D．was; was told
答案
答案：B
考查时态。句意：很明显当他被告知他必须返回时，这个男人已经在免费高速公路上开了将近一个小时。结合语境可知前文描述的是在过去已经完成的动作，故用过去完成时态。他是被告知的对象，故用被动语态，选B。