China is larger than _______in Africa(非洲).
| A．any country | B．any other country |
| C．the other countries | D．any countries |
This question sounds _____ than that one.
| A．many more polite | B．much more polite |
| C．many more politely | D．much more politely |
Health is very _____and every student knows the _____of keeping healthy.
| A．important ; importance | B．important ; important |
| C．importance; importance | D．importance; important |
Our country _______ a lot in the last fifty years.
| A．will change | B．changed |
| C．changes | D．has changed |
She said she had some trouble ___________ her homework.
| A．finish | B．finishing |
| C．to finish | D．Finished |
---Is the notebook Carla’s?---It _____be hers. It has Mary’s name on the cover.
| A．could | B．might | C．must | D．can’t |