Our classmates all have great fun_____ in the park.
| A．play | B．to play | C．playing | D．are playing |
Smoking ______ in public places in many countries. So you ______ smoke here.
| A．doesn’t allow , can’t |
| B．isn’t allowed, mustn’t |
| C．wasn’t allowed, may not |
| D．didn’t allow, can’t |
---He is an honest person , so what he said is _______.
| A．knowledgeable | B．valuable |
| C．comfortable | D．believable |
______ it is raining hard , they are still working in the field.
| A．Because | B．As soon as | C．Though | D．Unless |
The houses in big cities are so expensive that I can’t __________ to buy one .
| A．afford | B．choose | C．decide | D．give |
A smile costs _________, but gives so much. So we should learn to smile.
| A．something | B．anything |
| C．nothing | D．everything |