They planted trees and trees is 500.
| A．the number of; a number of |
| B．the number of; the number of |
| C．a number of; the number of |
| D．a number of; a number of |
- It's said that Mo Yan's speech was wonderful.
- That's true. We clapped our hands ________ many times during his speech yesterday.
| A．excited | B．excitedly | C．exciting | D．excitingly |
- Do you know the latest information about Flight MH370?
- I've no idea. Let's ________ the TV to watch the news programme.
| A．turn on | B．turn down | C．turn up | D．turn off |
- The air pollution is terrible.
- It will be worse ________ we take action to protect the environment.
| A．if | B．unless | C．until | D．when |
- What do you think of your school, Linda?
- It's a good place for us to ________ ourselves for the future.
| A．promise | B．prove | C．prepare | D．present |
- Which of the two T-shirts would you like? - ________. I don't like their styles.
| A．Either | B．Both | C．None | D．Neither |