.- Can I smoke here?
- Sorry. We don’t allow _____ here.
| A．people smoking | B．people smoke | C．to smoke | D．smoking |
At your company there are a few machines similar to described in this magazine.
| A．these | B．them | C．those | D．ones |
I really can’t thank you enough， sir. —.
| A．That’s the most I could do | B．I’m glad to have been of help |
| C．No problem | D．With pleasure |
IP addresses are the unique sequence of numbers ______ to each computer, websites or other Internet-connected devices.
| A．to assign | B．assigning | C．assigned | D．being assigned |
— Do you have the time? I’ve got something to tell you.
— Ok, ______ you make your story short.
| A．now that | B．even if | C．so long as | D．in case |
On top of the hill ______, whose style can be traced to the ages of the Roman Empire.
| A．there standing a church | B．does a church stand |
| C．a church stands | D．stands a church |