问题
选择题
Jack wasn’t saying anything, but the teacher smiled at him _______he had done something very clever.
A．as if
B．now that
C．while
D．though
答案
答案：A
本题考查连词。as if好像。句意：杰克什么也没有说，但老师对他微笑好像他非常聪明的做某事。
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