So suddenly ________that the animals in the zoo looked very frightened during the total solar eclipse (日全食)．
| A．did the sky turn dark | B．the sky did turn dark |
| C．turned the sky dark | D．was the sky turned dark |
Though the thief tried every means, he couldn’t _____being caught by the policemen finally.
| A．help | B．escape | C．survive | D．consider |
–Joe, are you free now?
—No, but I _____my work, and it won’t take long, perhaps in fifteen minutes.
| A．just finished | B．have finished |
| C．am finishing | D．had finished |
Tim is one of the boys who _____ to join the school football team.
| A．have been chosen | B．has been chosen |
| C．was chosen | D．are being chosen |
The policemen entered a lonely village near Nam Co Lake, ______ they believed the suspect（嫌疑犯） was hidden somewhere.
| A．where | B．which | C．what | D．whom |
Most of the Chinese people are big savers — they get used to putting every penny in the bank ______ a rainy day.
| A．in need of | B．in charge of |
| C．in exchange for | D．in preparation for |