it very cold (at)winter in harbin

It's very cold in winter in harbin的问句 It often s___ in harbin and it's very cold in winter. windy in in is Harbin it and winter cold 1.I think it’s very cold in Harbin in winter.（改为否定句）2.Jack a It's very c____ in Harbin in winter It is very s___ in Harbin in winter. it will be very cold in Harbin tomorrow(对very cold提问） it's (cold and snowy) in winter in harbin.对括号部分提问 there is?snow and it is?cold in Harbin in winter every year It is very cold in the northeast of China ___ winter. A．at B It's very cold in winter in Nanjing. In winter,the weather in Harbin is ____ cold