从方框中选择适当的句子完成对话。(只填序号)

Susan：Hello, Linda!

Linda： This is my friend Sam.

Susan：

Linda：He lives in the U. K. He arrived in China yesterday.

Susan：

Sam：

Susan：

Sam：Six months.

A. Did you have a nice trip? B. Where does he live? C. How long will you stay in China? D. Hello, Susan. E. Yes, I did.