根据中文提示完成句子。 1. 体育课我们必须穿运动鞋。 We have to wear _____ ______ for P.E class. 2. 在图书馆内不要大声说话。 Don't _____ _____ in the library. 3. 晚上十点前我必须睡觉。 I have to _____ _____ bed by ten o'clock at night. 4. 亚历克斯每周到少年宫学钢琴。 Alex goes to the Children's Palace _____ _____ the piano every week. 5. 你不能和你妈妈争吵。 You can't _____ _____ your mother. |