It is becoming more and more difficult to_______the problems of traffic in some big cities of our country.
| A．deal with | B．set up | C．put away | D．break down |
He devoted all the time _____ his research .
| A．to do | B．doing | C．to doing | D．did |
Mr. Liu dreamed ____ a big house for his parents after they retire.
| A．to buy | B．to buying | C．of buying | D．of being buying |
On the bus I saw a student____ I thought was your brother.
| A．who | B．whom | C．which | D．/ |
We’ll never forget the days ______ we lived in the country.
| A．when | B．where | C．which | D．/ |
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 |