【单选题】When there’s a 52 , leave the classroom quickly. Smoke makes them 53 and they can’t breathe. It’s better to put 54 over your mouth and nose. 55 when you want to get out, you should make yourself close...
【简答题】从方框中选择适当的句子补全对话。 A. That's a good idea! B. Where do you want to put it? C. Is it empty? D. Shall we go? E. Could you help me, please? A: Hello, Wang Wei! 1 B: Certainly! How can I help you? A: I want ...