Mrs. Brown is supposed ______ for Italy last week.

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问题 Mrs. Brown is supposed ______ for Italy last week.

选项 A、to have left
B、to leave
C、to he leaving
D、to have been left

答案A

解析 本题是动词不定式的完成式,表示不定式动作在句子谓语动作之前发生,故选择表示完成时的A)。
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