79. There are only five minutes left before the train leaves. You should run _______ .
| A．fast as possible as you can | B．as quickly as you can |
| C．as fast as possible | D．possible as fast as you can |
We had to be patient because it ______ some time ______ we got the full results.
| A．was; since | B．had been; since |
| C．would be; before | D．was; before |
In many countries, packets of cigarettes come with a government health warning ______ them.
| A．attaching with | B．attached with |
| C．attaching to | D．attached to |
— I am sorry the traffic is so heavy.
— Does that _______ why you are so late?
| A．settle down |
| B．account for |
| C．get away with |
| D．cut down |
I didn’t see her in the meeting room this morning. She _______ at the meeting.
| A．mustn’t have spoken | B．shouldn’t have spoken |
| C．needn’t have spoken | D．couldn’t have spoken |
The boy decided to climb the mountains _______ he knew he would face many difficulties.
| A．as though | B．unless | C．even though | D．even |