No matter how bright a talker you are, there are times when it is better ______ silent.
| A．remain | B．be remaining |
| C．to remain | D．having remained |
—Did the winner of the English Contest behave well?
—Really. She made a deep ________ on the judges.
| A．idea | B．feeling | C．impression | D．sense |
It had been half an hour before she found herself _____ in the wrong direction of
her home.
| A．walking | B．to walk | C．walked | D．walk |
His ability is beyond question; ______ has been in doubt is ______ he is prepared to work hard.
| A．what; that | B．what; whether | C．which; whether | D．that; that |
Most people would agree that nuclear science should be developed to benefit the human beings_______ harm them.
| A．more than | B．other than | C．better than | D．rather than |
Many new means__________ to prevent the river ____________.
| A．have found, from polluting |
| B．have found, from being polluted |
| C．have been found, from being polluted |
| D．has been found, from being polluted |