问题
选择题
While he the bus, he a book.
A.was waiting for, read
B.waited for, was reading
C.was waiting for, was reading
D.waited for, read
答案
答案:C
考查连词:While 当……时候,动词应用延续性动词,句意:当他等公交车的时候,他正在读一本书。根据语境这两个空表示的都是过去某一时刻正在进行的动作,所以选C。