题目内容
Mr Green asks us to hand in our reports ______ we finish them.
A. before B. as soon as
C. though D. because
B
【解析】句意:格林先生叫我们已完成就上交我们的报告。此题考查连词A. before在……之前;B. as soon as一……就; C. though 尽管……还;D. because 因为;根据句意,故选B。
考点:考查连词。
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