问题
选择题
It just isn't fair ________ I was working as a cleaner last month; my friends were on a visit to Dalian.( 2012·湖北八校联考)
A．whenever
B．though
C．for
D．while
答案
答案：D
D [考查连词。while在此处是“而”的意思，表示对比。]
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