it is very cold ,why not to close the window 这句话对吗?

Why Thanks.为什么It's very cold,isn't it?的答案是It sure is.而不是It is sure. it is very cold ,why not to close the window 这句话对吗? it is very cold in beijing.对very cold提问. it is very cold in beijing.对very cold提问. it is very cold in it It is very cold .It often ___heavily it is very cold _______winter _______Canada. she had a very bad cold,（ ）is why she didn't come.填this还是that还是it Maybe some people will ask me winter is very cold .Why do you like it?这句话有错吗? it is very cold.it is snowing h_____ __ it is sunny today,it is very cold 同义句转换：People think it is very cold.It ___ ______ _______ be very cold Today it is very cold and the temperature is eiToday it is very cold and the temperature is eight zero It ______(snow).The weather is very cold. Is it very cold in winter in Changchun? People think it is very cold.改为同义句 It is very cold outside.Please wear your hat.改错 is ,often,very,it,cold.连词成句