Tom was a black slave and he at last ______ the cotton farm to join the North Army.
| A．left | B．escaped | C．ran away | D．fled |
No conclusion _________ about the new product until the result of the experiment has been announced.
| A．is drawn | B．was drawn | C．will be drawn | D．has been drawn |
Don't you think it a pity that John ______ have behaved roughly toward us?
| A．should | B．would | C．could | D．might |
The well-known director, two of________ films won Oscar awards, is said to have retired.
| A．which | B．whom | C．whose | D．his |
Whether you believe it or not, it was________ caused the serious accident.
| A．because of your carelessness that | B．because you were careless |
| C．you were careless that | D．your being carelessness that |
We paid ________ cash in the hope that we can get a 15% _________.
| A．by , count | B．with , account | C．in , discount | D．in , charge |