题目内容
【题目】Xiao Li was supposed __________ her homework before nine o’clock. But she couldn’t.
A. to finish B. to finishing C. finish D. finishing
【答案】A
【解析】试题分析:句意:丽莎应该在九点之前完成她的家庭作业。但是她不能。 be supposed to do sth应该做某事,所以选A。
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