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．thought
答案
答案：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。as if意为“似乎，好像”，引导方式状语从句。