Oxford University is ________ with tourists for its beautiful old buildings.
| A．famous | B．popular | C．special | D．different |
The air in Beijing is getting much ______ now than a few years ago.
| A．clean | B．cleaner | C．cleanest | D．the cleanest |
He has two pets. One is a dog, ______ is a cat.
| A．the other | B．other | C．others | D．another |
— Will you stay for lunch?
— Sorry, I ______. My brother is coming to see me.
| A．needn’t | B．can’t | C．shouldn’t | D．mustn’ t |
I phoned you at six yesterday evening, ______ nobody answered.
| A．because | B．or | C．but | D．so |
— ________ did you last see him?
— Two weeks ago.
| A．How | B．Where | C．What | D．When |