--- It is selfless _____ the doctor to devote all the time he had for the patients.
--- I think so, they are so great.
| A．for; to care | B．of; to care |
| C．for; to caring | D．of; to caring |
I knocked on the door but ______ answered.
| A．somebody | B．nobody | C．anybody | D．everybody |
--- Can you ride a horse?
--- No, I ______.
| A．needn’t | B．may not | C．can’t | D．mustn’t |
We have a lovely room. It’s one of ______ in the hotel.
| A．nice | B．nicer | C．nicest | D．the nicest |
--- ______ do you play football?
--- Once a week.
| A．How much | B．How long | C．How often | D．How far |
Hurry up, ______ you will miss the plane.
| A．and | B．but | C．so | D．or |