At times the balance in nature is ______ , resulting in a number of possibly unforeseen effects.
| A．troubled | B．confused | C．disturbed | D．puzzled |
-Oh, come on. Just __________. Nothing can beat me.
-Well, to be frank, you should rewrite your essay.
| A．come straight to the point |
| B．take your time |
| C．take your turn |
| D．don't hesitate |
He claimed __________ in the supermarket when he was doing shopping yesterday.
| A．being badly treated |
| B．treating badly |
| C．to be treated badly |
| D．to have been badly treated |
It is said that people are __________ likely to tell lies over the phone as they are in emails.
| A．as twice |
| B．twice as |
| C．twice more |
| D．twice than |
The traffic accident was largely __________ the driver's carelessness.
| A．leading to |
| B．resulted in |
| C．due to |
| D．thanks to |
-The terrible accident is under investigation.
-Actually, quicker action __________ those workers trapped in the mine.
| A．may have saved |
| B．could have saved |
| C．must have saved |
| D．should have saved |