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The workers ___ busily when the boss came to look for something she ___ in the office.
A.had worked; had left B. were working; had left C. working; had left D. had worked; left
查看习题详情和答案>>The workers _____busily when the boss came to look for something she ______in the office.
A had worked, had left B were working ; had left C working ; had left D had worked; left
查看习题详情和答案>>The workers ________ busily when the boss came to look for something she ________ in the office.
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