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题型:单选题 题类:常考题 难易度:普通
句中的should have asked是"情态动词+现在完成时",表示过去本应该做某事,事实上没有做。
如:She {#blank#}1{#/blank#} Beijing. 她本应该去了北京。(没有去)
—He ______ Australia and he ______ Sydney for two weeks.
— It can't be him. He ______________ the village to be a volunteer.
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