请用所给词的正确形式填空英语哦.
1.Whichseasonisthe____(cold)
2.TheChangjiangRiveris___(long)thantheYellowRiver
3.Howmany_____(knife)doyouhave
4.IgottothefinishlinebeforeMary,soIwasthe_____(win)
5.Weshoulddoourhomeworkby______(we)