补全对话 A：The winter holiday is coming 71.___________________?B

补全对话 A：The winter holiday is coming 71.___________________?B：I am going to China.
A：The winter holiday is coming 71.___________________?B：I am going to China.A：72____________________?B：Yes,I have been there for holidays twice.A：73__________________?B：Yes,it is one of the largest countries in the world.It is famous for the Great Wall and the giant pandas.A：I see.74__________________?B：Yes,I can speak a little Chinese.A____________________?B：I think it is very great.