Ответ:
1.A: What do you think about Ann?
B: I don't like her. She is always lying to people.
2. A: We are going to the cinema later today. Do you want to come?
B: Sure. It sounds like a good idea.
3. A: Let's go to the park.
B: Sorry I can't. I haven't finished the homework yet.
4. A: The train is so late today!
B: Really? How long have you been waiting?