问题
选择题
Jack wasn't saying anything, but the teacher smiled at him ________ he had done something very clever.(2011·湖南)
A．as if
B．in case
C．while
D．though
答案
答案：A
A [考查状语从句。根据句意，空格处需要填入“好像，仿佛”。故选A。句意：Jack什么也没说，但老师向他笑了笑，好像他做了件聪明的事情一样。]
