These firemen are very helpful.(改为单数句子）

These firemen are very helpful.(改为单数句子） Here are the firemen Here are the firemen Here are the firemen的中文意思, These shoes are worn-out.They’ve lasted a long time. These firemen can't find people.These dogs help their.改病句急用! there firemen are very helpful 变单数句 there firemen are very helpful 变单数句 Are these 英语翻译Look at the fire,Fire,fire!Telephone one,One,nine!Bring the engine,Engine,engine!Here are the firemen,Firemen,firemen! Are these your trousers?Yes,these are, these are his shoes.( )are these ()? Are these your Are these your pencils? These bags are heavy. Are these pens ___? Are these shoes? These are my friend how much are these