"Did you call to make your airline reservation?" "Not yet, but I______

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问题 "Did you call to make your airline reservation?" "Not yet, but I______

选项 A、should have
B、may
C、must
D、shall

答案A

解析 should have done表示“应该做,而事实上没有做”。
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本试题收录于: 英语题库普高专升本分类
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