I had promised to send him an email_______ I got home but I was so busy that I forgot to do so .
| A．while | B．until | C．the moment | D．ever since |
The scientist said videophone could be used ___ the conferences.
| A．into | B．at | C．for | D．to |
A lot of cities, ___ Shanghai and Guangzhou , are getting more and more beautiful.
| A．such as | B．such like | C．so as | D．as |
May I use your pen please? I have no pen ___.
| A．to write | B．to wtite with | C．for writing | D．to write by |
We’re getting on very well with each other and ___ our room with him.
| A．living | B．sleeping | C．sharing | D．sitting |
The doctor __ my father not to smoke again.
| A．allowed for | B．let | C．advised | D．made |