--- 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 |
---You are confident about passing the coming test, aren’t you?
---______. I’m well prepared and feel I will make it.
| A．Sure, I am | B．It’s hard to say |
| C．I hope so | D．Well, maybe |
.Very loud noises ______ make people ill. So we ______ make great noise
| A．must ; mustn ' t | B．need ; needn ' t |
| C．can ; mustn ' t | D．must ; can ' t |
When you travel to a city, you’d better buy a ______ to get information about it.
| A．computer | B．suitcase |
| C．guidebook | D．camera |