Don’t worry. It won’t be long ______we see each other again.
| A．before | B．since | C．until | D．as |
—Shall I give you a ride as you live so far away?
—Thank you，________.
| A．it couldn’t be better | B．of course you can |
| C．if you like | D．it’s up to you |
The population of Rui’an is ________ so rapidly as to cause concern of the whole country.
| A．expanding | B．exploring | C．extending | D．spreading |
Progress so far has been very good. ______, we are sure that the project will be completed on time.
| A．However | B．Otherwise | C．Therefore | D．Besides |
________in a famous university is what most students wish for.
| A．To educate | B．Educated | C．Being educated | D．Educating |
—Robert is indeed a wise man.
—Oh, yes. Howoften I have regretted ________ his advice!
| A．to take | B．taking | C．not to take | D．not taking |