Swan Lake is a famous ballet(芭蕾) in four acts, ________ on a German fairy tale.
| A．basing | B．based | C．bases | D．to base |
--Why has he been staying at home these days?
--He ___________ since a month ago.
| A．has been out of work | B．was out of work |
| C．has lost his work | D．had left from his work |
The president of the country was well_________ of when he was in power.
| A．praised | B．fond | C．appreciated | D．thought |
The gas tank____________ twenty gallons of gas, but now it may____________ only three gallons.
| A．holds; contain | B．holds; be contained |
| C．is held; contain | D．is held; be contained |
Mr. Smith__________ the roll of film as soon as he arrived home
| A．got down to wash | B．got down to develop |
| C．got down to washing | D．got down to developing |
The shop manager always says to his assistants, "We can never be ____customers.
| A．so | B．too | C．that | D．more |