It was not yet dawn ______ the boy got to the school.
| A．when | B．that | C．before | D．until |
Polar bears live mostly on __________ sea ice, which they use as __________ platform for hunting seals.
| A．a; a | B．a; the | C．不填; a | D．the; 不填 |
—How about __________ Christmas evening party?
—I should say it was __________ success.
| A．a; a | B．The; a | C．a; 不填 | D．the; 不填 |
I looked under __________ bed and found __________ book I lost last week.
| A．the; a | B．the: the | C．不填; the | D．the; 不填 |
— Hello, could I speak to Mr. Smith?— Sorry, wrong number. There isn’t __________ Mr. Smith here.
| A．不填 | B．a | C．the | D．one |
I know you don’t like __________ music very much. But what do you think of __________ music in the film we saw yesterday?
| A．不填;不填 | B．the; the | C．the; 不填 | D．不填; the |