--Must I clean the room now? --No, you __________.
| A．can' t | B．may not | C．mustn' t | D．needn' t |
.
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 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.
| A．call for | B．call in | C．call off | D．call up |
.
Wage increases to a certain level help to________ the average consumers fro the effects of higher prices.
| A．cushion | B．reduce | C．prevent | D．remove |