英语语法选择题.附理由Unfortunately,when I dropped in,Doctor Li ____ for Beijing to join in the fight against SARS,so we only had time for a few words.A.just leftB.has just leftC.had just leftD.was just leaving

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英语语法选择题.附理由Unfortunately,when I dropped in,Doctor Li ____ for Beijing to join in the fight against SARS,so we only had time for a few words.A.just leftB.has just leftC.had just leftD.was just leaving
英语语法选择题.附理由
Unfortunately,when I dropped in,Doctor Li ____ for Beijing to join in the fight against SARS,so we only had time for a few words.
A.just left
B.has just left
C.had just left
D.was just leaving

英语语法选择题.附理由Unfortunately,when I dropped in,Doctor Li ____ for Beijing to join in the fight against SARS,so we only had time for a few words.A.just leftB.has just leftC.had just leftD.was just leaving
选D
从最后一个分句so we only had time for a few words.可看出,我适合doctor说了话的,那么他还没走是正要走,所以选D,be +ving可表进行,也可表将来不久.
句子的意思是,很不幸运的是,我到的时候李医生正要去北京加入反SARS的斗争中,所以们只聊了几句.

D.我见到了李医生, 说明还没走, 表示将来, 因为是过去, 要有过去将来时, 在英语中, 进行时态表示将来, 所以选D

选D 用过去进行时表示过去将要去北京,而且后面那一句是 :我们只交谈了一会 是先交谈后去北京

C
当我进去的时候,LI已经离开了
过去的过去用过去完成时

D 这句话的意思是:很不幸,就在我造访李医生的时候,他正准备去北京与SARS抗战,所以我们没有多少时间说话.
因为他说他们没有多少时间说话说明李医生还没走但马上要走,所以选D 进行时表将来,意思是"要离开"