7. The university has launched a research center to develop new ways of ________ bacteria which have become resistant to drug treatments.
| A．regulating | B．halting | C．interrupting | D．combating |
Government should adopt laws that would ban advertising and other types of ______ of tobacco products.
| A．delivery | B．spread | C．promotion | D．discount |
The managing director of this department took the ______ for the accident, although it was not really his fault.
| A．guilt | B．response | C．blame | D．accusation |
The former Olympic champion was ______ in the quarterfinals last night when he lost 0-2 at home.
| A．knocked off | B．knocked out | C．knocked down | D．knocked over |
The workers agreed to ______ the strike if the company would satisfy their demands for better salaries and working conditions.
| A．call for | B．call in | C．call off | D．call up |
Wage increases to a certain level will probably help to ______ the average consumers from the effects of higher prices.
| A．cushion | B．reduce | C．prevent | D．remove |