1. 今天下午没课。让我们去公园吧! We're free this afternoon. __________ go to the park. 2. 你每天最好多吃蔬菜和水果。 __________ eat more fruit and vegetables every day. 3. 他们正在为运动会做准备。 They __________ the sports meet. 4. 讲英语时,不要怕犯错误。 __________ mistakes when you speak English. 5. 学生们正忙着帮老人们打扫房间。 The students __________ the house.