which one to buy和to buy which one.有什么区别

Which one would you want to buy? I can't decide____ A.to buy which one B.which one to buy C.t I can't decide which one to buy 为什么不可以to buy which one I decide which one to buy.为什么要用which one to buy?而不用which to i can't make up my mind (to buy which one 和which to buy ）哪个对 I really don‘t know which one to buy I can't decide to buy which one, well,I can't decide which one to buy. 翻译:which one do you want to buy? can you tell me which one ----------(to buy/buying) My brother advised me which one to buy .划分句子成分 which one do you want to buy 同义句