______ abroad for more than two years, he returned to his hometown.
| A．Studied | B．Studying |
| C．Having studied | D．To study |
If you want to see Mr. Johnson on Friday morning, make sure he is ______ ahead of time.
| A．approachable | B．accessible | C．available | D．convenient |
I appreciate ______ the opportunity to work in your company two years ago.
| A．giving | B．to give | C．being given | D．to be given |
It is one thing to enjoy listening to good music, but it is quite ______ to perform skillfully yourself.
| A．another | B．other | C．the other | D．others |
The rising house price and the high income tax rate have become the biggest ______ of the ordinary people in China today．
| A．concern | B．influence | C．involvement | D．occupation |
--- She will finish the project within three days!
--- ______! I could do it in three hours.
| A．You are right | B．I’m stuck | C．Oh, come on | D．Don’t mention it |