The students busily when Miss Brown went to get a book she in the office. A. were working; had left B. worked; left C. had worked; left D. were working; would leave (正确选项A, 句中went 是说话人给定的时间, work 和leave发生的时间都要看它们与went 的时间关系, work 与went动作同时发生, 强调正在做,用过去进行时; leave 在went之前发生, 应用过去完成时.) 查看更多

 

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The students _______ busily when Miss Brown went to get a book she _______ in the office. 

A. had written, left         B. were writing, has left

C. had written, had left       D. were writing, had left

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The students _______ busily when Miss Brown went to get a book she _______ in the office. 

A. had written, left     B. were writing, has left C. had written, had left      D. were writing, had left

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The students ________ busily when Miss Brown went to get a book she ______ in the office.

A.had written, left     B.were writing, has left

C.had written, had left   D.were writing, had left

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The students _______ busily when Miss Brown went to get a book she _______ in the office. 

A. had written, left          B. were writing, has left

C. had written, had left   D. were writing, had left

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The students ___ busily when Miss Brown went to get a book she ___ in the office.

A. had written ; left              B.were writing ;has left

C.had written ;had left           D.were writing ;had left

 

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