The street ______ the traffic accident last night,
| A．sensed |
| B．saw |
| C．knew |
| D．had seen |
He reminded his daughter that only after _____ a secretary and other staff _____ able to concentrate on marketing.
| A．she could afford; would she be | B．she could afford; she would be |
| C．could she afford; would she be | D．could she afford; she would be |
–Would you like another sandwich?
--Another sandwich? I _____ my first one yet.
| A．haven’t had | B．hadn’t had | C．didn’t have | D．don’t have |
Many experts hold the view _____ teacher development is ____ the key to better education lies.
| A．which; where | B．which; in which | C．that; where | D．that; in which |
_____ that he has no qualifications in business management, Ken plans to gain the necessary skills by taking a part-time course.
| A．Concerning | B．Concerned | C．Being concerned | D．To concern |
The river _____ banks used to be covered with fruit trees and flowers is now seriously polluted.
| A．of which | B．along which | C．where | D．whose |