By the time he was 12 years old, he_______ threedifferent languages.
| A．mastered |
| B．will have mastered |
| C．has mastered |
| D．had mastered |
Lots of medicine as well as equipment such as tents _______ offered to the area since the earthquake occurred.
| A．has been | B．have been | C．is being | D．are being |
Only after I sent out scores of job application _______ an offer from a small company.
| A．had I receive | B．did I receive | C．I had received | D．I received |
I regret _____ you that Tom failed to pass the driving test and that he really regretted ______ your advice on practicing more.
| A．to tell; not following |
| B．to tell; having not followed |
| C．telling; not to follow |
| D．telling; not having followed |
The shooting center is about 50 kilometres ________ the city of Beijing.
A. in south of B. the south of D. southern of D. south of
Everything has gone smoothly with the project so far. __________ it’s believed to be completed on time.
| A．Besides | B．Therefore | C．However | D．Otherwise |