—I didn't go to see the doctor yesterday.
—But you ________.
| A.ought | B.ought to | 
| C.ought to be | D.ought to have | 
___and I’ll get the work finished
| A.Have one more hour | 
| B.One more hour | 
| C.Given one more hour | 
| D.If I have one more hour | 
Follow your doctor’s advice___your cough will get worse
| A.or | 
| B.and | 
| C.then | 
| D.so | 
The young people consider ___a computer ,which is condiered___a great help in their work
| A.to buy;to be | 
| B.buying;to be | 
| C.to buy;being | 
| D.buying;being | 
Columbus was considered___the great land of America
| A.to discover | 
| B.to have discover | 
| C.discovering | 
| D.having discovered | 
___,the student didn’t point out his teacher’s mistake publicly
| A.Out of control | 
| B.Out of work | 
| C.Out of respect | 
| D.Out of reach |