In our school library there_______ a number of books on science, and in these years the number of them_______ growing larger and larger.
| A．are; is | B．is; are |
| C．have; are | D．has; is |
The rivers will become dirtier and dirtier________ we take action to protect them.
| A．since | B．if | C．until | D．unless |
I’m sorry to hear that quite two people died _______ the earthquake at the beginning, but later still more died ________ the diseases after the quake last year.
| A．of; of | B．from; from |
| C．of; from | D．from; of |
There will be __________one-hour documentary on CCTV8 tonight.
______one- hour documentary takes a close look at the life of tigers in India.
| A．The, a | B．an, The |
| C．a, The | D．The, an |
—I really want to give up my dream of being a singer.
—_________. You are so young that you still have more chances.
| A．Don’t do it like that. | B．It’s a good idea. |
| C．Why not start again. | D．How lovely you are! |