The students on a farm for ten days. Then they to a factory. Though they back at school, they still remembered those farmers and workers. A. have stayed; went; were B. had stayed; go ; are C. have stayed; go; have been D. had stayed; went ;were 1998年 【查看更多】
题目列表(包括答案和解析)
The students ________ on a farm for ten days．Then they ________ to a factory．Though they ________ back at school, they still remembered those farmers and workers．
