Mistakes don’t just happen; they occur for a reason. Find out the reason, and then making the mistake becomes ______.
| A．favorable |
| B．precious |
| C．essential |
| D．worthwhile |
The _______the young man left on us is that he was from a respectable family.
| A．sight | B．appearance |
| C．impression | D．expression |
So far, no agreement ________ on which type of exercise is best suitable for keeping fit.
| A．has reached | B．has been reached |
| C．was reached | D．had been reached |
In China's countryside, villagers often have the same family name, but ________ not be closely related.
| A．need | B．shall |
| C．must | D．may |
In one's lifetime, if fortunate, one is likely to be blessed by the friendship of another person ________ existence can be a great inspiration.
| A．whose | B．which |
| C．who | D．whom |
An unemployed Iranian man threw his shoes at President Mahmoud Ahmadinejad while the leader________ a speech.
| A．delivered | B．was delivering |
| C．would deliver | D．had delivered |