可以填写不定冠词a 形容词性物主代词 指示代词(that this) 或者是another 序数词one等 具体得看前后语境 比如说:-What's it? -- It's a new skirt. Whose is it ?-- It's her new skirt. He gifted me a skirt last year for birthday party. Guess what I got this year? It's another new skirt! etc.
a