题目内容：

根据下面的对话情景，在每个空白处填上一个适当的句子，使对话意义连贯、完整。

A: Do you know the earthquake in China not long ago?

B: 1.______________________. But I only know a little about the earthquake.

A: Many people died and got hurt in the earthquake.

B: 2.______________________.Where did it happen?

A: It happened in Ya’an, Sichuan Province.

B: 3._______________________?

A: It happened on April 20th, 2013.

B: 4.________________________?

A: We should try our best to help them.

B: 5.________________________.