Ball had ___ one-sided view that his wife had been a spy of ___ European country.
| A．a ,a | B．an, an | C．a, an | D．an, a |
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. |
What depressed her was that although she kept waving her hand, nobody seemed _______ her new watch.
| A．noticing | B．to have been noticed | C．to have noticed | D．having noticed |