听下面一段对话,回答第1-3小题。
1. Where is Mary from?
A. America.
B. Australia.
C. Canada.
2. Where do the speakers live probably?
A. In Beijing.
B. In Shanghai.
C. In Guangzhou.
3. What are Li Lei's family going to do in the summer?
A. To visit their hometown.
B. To see their grandparents.
C. To have a travel in the south.