The dog has a(n) _______ sense of smell while the rabbit has a sharp sense of hearing.
| A．acute | B．cautious |
| C．flexible | D．valid |
Although the working mother is very busy , she still _______a lot of time to her children .
| A．spends | B．offers | C．devotes | D．provide |
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 |