Shortly after the serious accident two_______ policemen were sent to the spot to keep order.
| A．score of | B．scores | C．dozens | D．scores of |
Professor Smith has written some novels, but he is _____ known for his plays.
| A．the best | B．more | C．better | D．the most |
How beautifully Mary sings! We have never heard _____ voice.
| A．a better | B．a best | C．the better | D．the best |
We must keep our room clean, for dirt and disease go______.
| A．hand in hand | B．step by step | C．from time to time | D．one after another |
The plans flew smoothly ______ in the sky and people spoke ______ of theexperienced pilots.
| A．high；high | B．highly；highly | C．high；highly | D．highly；high |
Thanks to the good care of the nurses ,the boy is ______ recovering from his lung operation .
| A．quietly | B．actually | C．practically | D．gradually |