We should learn about first aid,That's necessary for us合并为一句

We should learn about first aid,That's necessary for us合并为一句 英语翻译it is necessary for us to do first aid when we ___1____ He is a man. We should all learn from him.合并为一句 We should obey the rules round us.It very important.(两句合并为一句 同义句转换.We think that it's important for us to learn English w It is necessary for to do first aid when we _____ someone in it's necessary for us to learn english well同义句 2.It is important for us()something about first aid.A.know B We argue that it is necessary that we should learn the ancie We should obey the rules round us.it's very important.(合成为一句 It's necessary / important / essential that we (should) clea 英语的宾语从句16.We think that it’s important for us to learn Engli