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题目
题型:不详难度:来源:
--Shall Mary come and play computer games?
--No,__________ she has finished her homework.
A.whenB.ifC.unlessD.once

答案
C
解析
本题只要理解了句意就能很容易地选出unless。句意为:“玛丽要来打电脑游戏吗?”“不,除非她完成了作业。”
核心考点
试题【--Shall Mary come and play computer games?--No,__________ she has finished her h】;主要考察你对连词等知识点的理解。[详细]
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