1) A: When do you think John will be back?
B: I think he'll be back on Saturday
A: It's wonderful! Saturday is my day off, I will be happy to meet him at the station!
2) A: I can't wait to see him again. What are you doing at the weekend?
B: I don't know. Why are you asking?
A: I think that if you have time, we will get together at my house
3) A: I'm going to the café, but I don’t have any money. Would you like to come with me? If you buy me a sandwich, I will help you with your work.
B: I’m so busy today. I just don't have time. Here is a five dollar bill. Buy two sandwiches, two coffees, and get back with them fast. We have some work to do.
A: Oh, thank you very much. You're a real friend.
4) A: I'm so hungry. Let’s get some hamburgers
B: Can you wait a little? I really must clean the kitchen floor before we go out
A: Good! I can help you if you want.
2. No, I didn't
3. No, they didn't
4. Yes, I did
5. Yes, they did