Graduates of 2009 share ______ fate of entering the work force at a bad time, when the world is sinking deeper into ______ financial crisis.
| A．the ；the | B．a ；the | C．a ；不填 | D．the ；a |
The NBA is _____ organization of professional（职业的） basketball players in the USA.
A. a B. an C. the D. /
We used to work in the same office and we _________ have coffee together.
| A．would | B．should | C．could | D．might |
_____ all the inventions have in common is ______ they have succeeded.
| A．What; what | B．That; what | C．What; that | D．That; that |
The new machine，if _________ properly，will work at least ten years.
| A．use | B．using | C．being used | D．used |
—What were you doing when the telephone rang?
—I ______ away my books and ______ to bed.
| A．had just put;was going | B．was just putting;went |
| C．just put;had gone | D．have just put;gone |