大师作文网When ___ Mr.Harris __the town for Sydney?A.did,leave; was B.
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When ___ Mr.Harris __the town for Sydney?A.did,leave; was B.did,leave; is A or B 哪个对?为什么
选A.这是虚拟语态的一种用法.
Mr.Harris离开去悉尼尚未发生,是种虚拟情况,比较容易混淆的是认为应该用将来时.其实这是英语语言习惯的问题,这句更强调动作发生.未发生就可以用虚拟语态,用将来时和虚拟语态有细微的差距,你自己再揣摸下.
你应该给全下半句,就很容易用淘汰法排除B,问Mr.Harris什么时候离开,回答虚拟语态除给出时间外还暗含未走（动作未发生,虚拟）之意.
Mr.Harris离开去悉尼尚未发生,是种虚拟情况,比较容易混淆的是认为应该用将来时.其实这是英语语言习惯的问题,这句更强调动作发生.未发生就可以用虚拟语态,用将来时和虚拟语态有细微的差距,你自己再揣摸下.
你应该给全下半句,就很容易用淘汰法排除B,问Mr.Harris什么时候离开,回答虚拟语态除给出时间外还暗含未走（动作未发生,虚拟）之意.
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