three,five,fifteen,three,twelve,thity-one,fifty-five,ninety-

three,five,fifteen,three,twelve,thity-one,fifty-five,ninety-nine 写出下列基数词的序数词
her birthday is september 5th(对画线部分提问)
———————
how old is bill?(改为同义句)
this skirt is the woman s(改为复数形式)
she likes sandwiches(改为否定句)

third fifth fifteenth third twelfth third-first fifty-fifth ninety-ninth
What's her birthday
what's bill's age
those skirts are the women's
she dosen't like sandwich
再问： This is my sister s computer(改为同义句)
再答： this computer is my sister‘'s