It’s         second time in five days that he has asked me for          higher 
pay.
| A.不填;a | B.a;the | C.the;a | D.the;the | 
Finding information in today’s world is easy.The ________is how you can tell if the information you get is useful or not.
| A.knowledge | B.ability | 
| C.competition | D.challenge | 
Helen has been looking for a job over the whole year,feeling she can’t get________without work experience.
| A.one | B.it | 
| C.that | D.this | 
—I’d like to be on my own for a while.Do you mind?
 —________.Go ahead.
| A.Not in the least | B.No way | 
| C.Yes,of course | D.I’m afraid so | 
—Does Shelley like shopping?
 —Well,she would rather spend time________at home than________in the street.
| A.read;wander | B.reading;wander | 
| C.in reading;to wander | D.reading;to wander | 
—I regret________you John has been fired.
 —I can hardly believe my ears.He’s such a fine worker.
| A.telling | B.having told | 
| C.to tell | D.to have told |