Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice．
| A．one | B．that | C．the one | D．the other |
He lives in a room _______ faces the south.
| A．whose windows | B．the window of which |
| C．whose the window | D．of which the windows |
Is this dictionary _____ you bought yesterday?
| A．that | B．which | C．the one | D．where |
The skirt ______ she spent 50 yuan is very beautiful on her．
| A．in which | B．on which | C．for which | D．with which |
He must be from America, ____ can be judged from his accent.
| A．that | B．which | C．it | D．where |
This is the hotel ______ we stayed last year.
| A．where | B．it | C．which | D．that |