Question

Jack wasn’t saying anything，but the teacher smiled at him________he had done something very clever.                                                    (2011·湖南，33)

A．as if	B．in case
C．while	D．though

Answer 1

A
解析　句意为：杰克什么也没说，但是老师朝着他笑，就好像他做了非常明智的事情一样。as if好像；in case以防万一；while当……时候，而，却；though尽管。由句意可知应选A项。