1-28. Уточнители what, which, whose

 
What, which и whose употребляются в качестве вопросительных уточнителей:

[Which teacher] do you like best?
[Which colour] do you want - green, red, yellow or brown?

[What writers] do you like?
[What colour] are your baby's eyes?

[Whose car] is that outside?
[Whose garden] do you think looks the nicest?

■ Предлог может стоять перед whose (более формально) или в конце предложения (менее формально):

For [whose benefit] were all these changes made?
[Whose side] are you on?

В коротких вопросах без глагола, предлог может стоять только перед whose:

I'm going to buy a car. - With [whose money]? (не ‘Whose money with?’)