1. A ： he is my best friend B ： I don’t know C ： My mom just called me from Taiwan

2. A ： I am going to be late for the bus B ： I am going to go to Canada C ： I am talking the air plane on Friday

3. A: I just saw him in the classroom B ： They are on your desk C: ： It is too big

4. A ： I am fine B ： I am a student C ： I do my homework

5. A ： We were classmate B ： she is so cute C ： I will meet him at school

6. A ： It is rush hour B ： how can I know C ： you are right

7. A ： What was that? B ： yes, I just finished it C ： No, I do not like it

8. A ： Yes, please. B ： cheers C ： what’s up, guys.

9. A ： Yup, why not B ： Where is my clothes C ： My pleasure to know you

10. A ： I wish the blue one B ： The green one is cheaper C ： Neither

11. A ： She is at home now B ： Maybe next Monday C ： she does not want to see me

12. A ： yes, one more cup,please B ： Oh, I forget it C ： Tea, please