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.