【20個(gè)經(jīng)典英語(yǔ)口語(yǔ)句式】Which...的句型

Which one is yours?
哪一個(gè)是你的？

Which is your choice?
你選擇哪一個(gè)？

I don't know which one is his.
我不知道哪一個(gè)是他的。

I didn't see the pop star, which is a pity!
我沒有看到那個(gè)大明星，真可惜！