摘要： 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.)
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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
查看习题详情和答案>>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
查看习题详情和答案>>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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