To my great disappointment, my best friend left the city I could have a word with her.
| A．before | B．after | C．while | D．until |
It's impossible________back the wheel of history.
| A．to hold |
| B．holding |
| C．held |
| D．to be held |
The bell________the end of the period rang, ________our heated discussion.
| A．indicating; interrupting |
| B．indicated; interrupting |
| C．indicating; interrupted |
| D．indicated; interrupted |
The policeman said the accident last night______careless driving, so much money________be paid by the driver.
| A．was due to; was due to |
| B．due to; was due to |
| C．is due to; was due to |
| D．is due to; was due to |
The matter________your study surely requires________carefully.
| A．relating to; dealing with |
| B．related to; dealt with |
| C．related to; being dealt with |
| D．relating to; having dealt with |
When they came to a new country, they found it difficult to________themselves to new circumstances.
| A．apply |
| B．accept |
| C．admit |
| D．adapt |