Our English teacher is ill, and we are all ______ her health.
| A．careful of | B．concerned about | C．interested in | D．calm about |
—Tony said he could fix my bicycle, but I really doubt it.
—_ __. He's good at that sort of thing.
| A．Don't worry | B．Of course |
| C．A piece of cake | D．I couldn't agree more |
No sooner ________in the distance ______a storm began to pour.
| A．a thunder broke; when | B．a thunder had broken; than |
| C．had a thunder broken; than | D．did a thunder break; than |
The CDs are on sale！Buy one and you get ______ completely free.
| A．other | B．others | C．one | D．ones |
It’s no use____ that you didn’t know the rules.
| A．you pretend | B．you to pretend | C．of you to pretend | D．your pretending |
At a rough estimate（估计）, Nigeria is ____ Great Britain.
| A．three times the size as | B．the size three times of |
| C．three times the size of | D．three times as the size of |