in the cinemaA.在电影院 B.在操场上
_____ people invented paper. A. English B. Chinese C. American
Daming_____ his trousers yesterday. A. washes B. washing C. washed
Yesterday I _____ my bedroom. A. clean B. cleaned C. cleans
选择并改错，把错误的一项圈起来，在句子后来改正。
根据问句找答句。
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