【单选题】听力原文:M: I must point out the trials of new medicine are expensive and you can never guarantee success. W: But there is a very good chance in this case. I do hope you'll go ahead in view of the potenti...
【简答题】A: Any good news? B: Not really. 小题1: So I was left behind after school yesterday. A: 小题2: B: Sometimes I do. The day before yesterday, I was quiet in my history class but I still had to stay after sc...