After the terrorist attack last month, anyone at the airport heavy bags, bottles of liquid, or whatever, could be stopped and questioned by the police.
| A．seen carrying | B．seen carry |
| C．seen to carry | D．seen to be carrying |
—I have won the first prize in the recent English contest.—______________!
| A．Congratulations | B．Cheers | C．Best wishes | D．Good luck |
I hurried back home only ________ that I had left my key at my office.
| A．to find | B．finding | C．having found | D．found |
It’s impossible for him to escape ________ this time; he made such a big mistake.
| A．to punish | B．punishing | C．being punished | D．having punished |
_________ the exercises, we went on to learn the new words in the next unit.
| A．Finished | B．To finish | C．Having finished | D．Finishing |
—________ You look very depressed. —I failed the driving test again.
| A．So what? | B．Take your time. | C．What’s up? | D．Not to worry. |