Much disappointed as he is _______ in the job interview, he still keeps his confidence.
| A.to have failed | B.failed | 
| C.having failed | D.failing | 
—Would you like to tell me what our teacher said just now?
 —She said that light__________faster than sound.
| A.travels | 
| B.traveled | 
| C.would travel | 
| D.was traveling | 
—Did you telephone the manager’s office?
 —Yes,he__________back before 9 o’clock this morning.
| A.expects | B.is expected | C.expected | D.was expected | 
You can certainly leave the classroom as soon as your homework__________.
| A.has done | 
| B.has been done | 
| C.will be done | 
| D.will have been done | 
—Do you smoke?
 —No,I don’t.It’s two years since I __________.
| A.smoked | 
| B.have smoked | 
| C.has smoked | 
| D.don’t smoke | 
—How is the boy?
 —Sorry.He__________though the doctor made every effort to save him.
| A.died | B.was dead | C.had died | D.has been dead |