问题
选择题
We didn’t expect them ___ for us when we arrived there so late.
A.to be waiting
B.to have been waiting
C.to have waited
D.to wait
答案
答案:A
句意:我们没有预料到他们会正在等我们当我们到那很晚的时候。短语:期望某人做某事,expect sb to do,期望某人做某事,根据语境他们当时正在等,所以用不定式的进行时。选A。