— What do you do as a volunteer in Africa?
— ______ ! There are many poor people there, who need a lot of help.
| A．Little | B．Everything |
| C．None | D．Something |
______ important thing in life is to have a great aim, and ______ determination to attain it.
| A．An ; 不填 | B．A ; the | C．The ; the | D．The ; 不填 |
In China, the number of cities is increasing ______ development is recognized across the world.
| A．where | B．which | C．whose | D．that |
---I’m going to San Francisco for a couple of days.
---_________. I wish I could get away for a while.
| A．It doesn’t matter | B．I can’t agree more | C．I really envy you | D．Forget it |
Mike was usually so careful, ______ this time he made a small mistake.
| A．yet | B．still | C．even | D．thus |
Try _____ she might, Sue couldn’t get the door open.
| A．if | B．when | C．since | D．as |