It is the air,that is a_____us all.

It is the air,that is a_____us all. It is that all? It is suggested that the air conditioner __________________ it is the earth that is traveling all the time. 翻译~All it says is that it fights it and that is not the same Summer is the great season for all sports in the open air.It 将句子译成汉语：sometimes the polluted air is so thick that it is li It is reported that PM2.5pollution is the main problem( )air It is recommended that the project ___started until all the that is all,that is it ,that is right 区别? that is all there is to it Here it is.Is that all.