At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.
| A．and not to speak | B．but could not speak |
| C．instead of speaking | D．or rather speak |
In common with many people，I like white colour as it is a ________of purity.
| A．symbol | B．sign | C．signal | D．mark |
He some French while he was away on a business trip in Paris.
| A．made out | B．picked up | C．gave up | D．took on |
Athens，________known as the birthplace of the Olympics，________the capital of Greece.
| A．is；is | B．不填；is | C．is；不填 | D．不填；不填 |
--Can I smoke here?
--Sorry, we don’t allow __________ here.
| A．people smoke | B．to smoke | C．people smoking | D．smoking |
— Is it good to look up every new word when I come across it in reading?
—No，you _____，because you are likely to guess the meaning from the context,
| A．don't have to | B．shouldn't | C．can't | D．mustn't |