求一个英语情景对话 要现实生活中的 常用的要英语水平不高的能听懂的 不要太短的 另外说一下是英语口语比赛要用的 一个对话要长点

A: I don't think Ms. Li likes me.
B: Why not?
A: She didn't greet me even after I said hello to her in the aisle.
B: It's really rude of her. After all, she's a teacher. She taught us to be polite. So she was supposed to set a model for us.
A: Well, it's ok. I just shrugged it off. I agreed with you that she was not nice. I didn't finish homework yesterday. Probably she was not happy about that.
B: But it doesn't give her any excuses to be impolite to students.
A: Right.
B: If it happens again, you can ask her, "why didn't you greet me as well?"
A: I don't really think it's necessary. I will just be myself. It's my choice to be polite to people. And it's her choice not to be. We just need to be responsible for ourselves. In this society, not everyone is friendly. They need to learn from better ones.
B: haha. Although she is your teacher, on some aspect, you could be her teacher.
A: Thank you!

那就问路咯。
A：Would you please tell me where is the library.
B:Er.. Sorry. I don't know. But i think you can ask the man over there.
A: Execuse me . Sir. Do you know how to go to the library?
C:Yes. Walk along this road and then turn right you can see a traffic light and turn left. The libray is in front of you.
A:Thank you Sir .
C: It's my preasure

1、购物 （Shopping）
1.- What can I do for you?
- I‘d like some apples.
2.- Where can I buy some stationery?
- Let‘s look at the shopping guide.Oh,it‘s on the ground Floor.
3.- Could I buy half a kilo oranges?
- Certainly.Here you are.
4.- Will you please show me that radio?
- Certainly.
5.- How much is the radio?
- Ninety yuan.
6.- Good morning,sir.May I help you?
- Yes,I‘d like to buy a sweather.
2、看病 （Seeing the doctor）
1.- I‘m feeling tired,doctor.
- Have a good rest and then you‘ll feel better.
2.- How are you feeling today?
- I‘m feeling even worse.
3.- Doctor,she is not feeling well.
- Nothing serious,I hope.
4.- Doctor,do I have to take the medicine before or after meals?
- Three times a day after meals.
5.- What‘s the matter?
- I‘ve got a headache.
6.- What‘s your trouble?
- I‘ve had a pain in my stomach since morning.
4、打电话 （Making telephone calls）
1.- Hello!
- Hello,Bill?
- No,this is Sam.
- Hi,Sam.This is Mike.How are you?
2.- Hello.
- Hello.May I speak to Mr Green?
3.- No.5 Middle School.
- Mr Green,please.
- I‘m sorry.Mr Green is not in.
- When will he be back?
- About six this afternoon.
- All right.I‘ll ring again then.
- Very well.
4.- Hello!
- Hello,Ham Mei.Could I borrow your Chinese-English Dictionary please?
- Sorry!It‘s not a very good line.Could you speak more loudly?
- Could I borrow your Chinese-English dictionary?
- Sure.I‘ll bring it to you tomorrow.
- Thank you.Goodbye.
给你推荐几个,可以找个话题,供你参考啊!