Which 为什么是ones?

Which 为什么是ones? which ones will come true?为什么one要加s which ones?these ones?可以说成which ones?these? 为什么Which books do you like better?The_on the desk.里面填ones? I can t pick out the ones I like best.为什么是"ONES" they are all old ones 的ones在此句中为什么是表语? We are usually the ones affected.affected是形容词,为什么要放在ones后面 Which boxes are bigger,these ones or those ones WHICH ARE__(NICER,NICE)?THESE ONES OR THOSE ONES. WHICH ONES ARE YOURS?主语是谁 We're not sure which ones yet." We're not sure which ones yet.