——When did Hong Kong return to our motherland? --_______ July 1st, 1997．
| A．On | B．At | C．In | D．/ |
---You bought the car ten years ago? ---Yes. ______ it’s old, it still runs well.
| A．Because | B．Since |
| C．Although | D．But |
---Relax. Don’t work today. Just ______. ---Thanks a lot.
| A．deal with | B．take it easy |
| C．turn off | D．stay away from |
I don’t think one country can solve the problem of pollution alone, _______?
| A．do I | B．may I |
| C．can it | D．can’t it |
--- Have you finished all your homework?
--- Of course. I ______ it before I went out to play football.
| A．had finished | B．have finished |
| C．finished | D．was finishing |
Shangri-la, a place of mystery and beauty, is indeed a heavenly world ______ people live in.
| A．who | B．which |
| C．when | D．where |