问题
选择题
Last week we went to visit a toy factory, where we ________ for three hours.[ ]
A. have stayed
B. stayed
C. had stayed
D. were staying
答案
答案：B
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Last week we went to visit a toy factory, where we ________ for three hours.[ ]
A. have stayed
B. stayed
C. had stayed
D. were staying
答案：B