用have 、has、 do 、does 填空19.I a cat. 20.He _ a dog. 21.She _ long hair. 22.We _ a big house. 23.They _ a happy family. 24.It _ a short tail.25.You _ a good teacher. 26.Elva _ two big eyes. 27.Tom _ a red pen. 28.My mother _ a beautiful nose. 29.Cats _ four legs. 30.Dogs _ (have) two ears.31.My father _ a blue car. 32.Everybody _ two hands. 33.Students _ (have) many book