The old man has retired from the factory. He _____ there for 30 years.
| A．works | B．worked |
| C．has worked | D．was working |
15．While he has failed again and again, he never gives up in order to________his dream.
| A．achieve | B．awake | C．admit | D．Control |
14．This doubt had been in my mind for some time, but the research still went on____some reasons.
| A．to | B．about | C．for | D．In |
13．Not until I was a senior student_________the importance of English.
| A．I have realized | B．did I realize | C．have I realized | D．I realized |
12．There is__________in what you say; I will take your advice.
| A．everything | B．anything | C．something | D．Nothing |
11．—I passed my driving test at the first_________.
—Congratulations!
| A．purpose | B．desire | C．attempt | D．Wish |