第1个回答 2014-08-11
We have learnt how to respond to the fire disaster.
第2个回答 2014-08-11
We learned when fire happens is what to do 望采纳。
第3个回答 2014-08-11
We learn what to do when a fire occurs
第4个回答 2014-08-11
We learned what to do when there is a fire.
第5个回答 2014-08-11
we learned what we should do when it fires
追问谢了