O, onu hangi kitabı satın alacağı konusunda yönlendirdi.
- She advised him on which book to buy.
Biz onların hangi trenle geleceklerini bilmiyorduk.
- We didn't know on which train they'd be coming.
... That's gonna require a lot of steps, a lot of which we've already making a--made progress ...
... is ' which is the portion of the law which says that employers could be able to determine ...