I’ll call you _________I get to Beijing.
| A．since | B．though | C．so | D．as soon as |
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 |
---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 |