A.too | B.thank | C.and |
A.Hi, I'm Sam. | B.Hello, Sam. |
A.Thank you! | B.Bye-bye. |
A.Bye-bye. | B.Good morning, Xiaohong. |
A.hello | B.Hello | C.good morning |
A.Thank you. |
B.How are you? |
A.I'm Xiaoli. | B.What's your name? | C.How are you? |
A.Sam | B.sam | C.Ms |
A.Goodbye! | B.Hello! |