This problem is said_____ three times at the meeting. However, they haven’t arrived at a conclusion now.
| A．to have discussed | B．to have been discussed |
| C．having been discussed | D．having discussed |
Do you work near the building ____ colour is yellow?
| A．that | B．which | C．its | D．whose |
In the dark street, there wasn’t a single person ____ she could turn for help.
| A．whom | B．who | C．to whom | D．form whom |
Is this school ____ we visited three years ago?
| A．the one | B．which | C．that | D．where |
Is this the school ____ we visited three years ago?
| A．the one | B．where | C．in which | D．/ |
How many students are there in your class ____ homes are in the country?
| A．whose | B．who | C．whom | D．which |