A.Hello. | B.How are you? |
A.I'm fine. | B.Not very well. |
A.Good morning, Mr Li. | B.Good morning, Miss Li. |
A.Hi, I'm Ben. | B.Goodbye, Ben. |
A.Good evening, Miss Wang. | B.Good afternoon, Mrs Wang. |
A.Hello | B.I’m fine | C.Thank you |
A.Good morning! | B.I’m fine. | C.How are you ? |