Biz onların hangi trenle geleceklerini bilmiyorduk.
- We didn't know on which train they'd be coming.
O, onu hangi kitabı satın alacağı konusunda yönlendirdi.
- She advised him on which book to buy.
... simply as a different kind of paper which is on the screen, ...
... and the one in which users may be able to control their computers some of the time. ...