We must take measures to protect the environment from ______．
| A．polluting | B．being polluted | C．polluted | D．pollute |
The mother felt very happyher daughter’s success．
| A．at | B．of | C．on | D．in |
—Wasn’t it Dr．Wang who spoke to you just now?
—．
| A．I didn’t know he was | B．Yes，it was |
| C．No，he wasn’t | D．Yes，he did |
Under the apple tree in the garden，smiling at another fruit harvest．
| A．an old man standing | B．did an old man stand |
| C．an old man stood | D．stood an old man |
Had you joined the chat room ten minutes ago，you would have known what we
about then．
| A．had talked | B．have talked | C．talk | D．were talking |
Girls are alwaysabout the private life of movie stars．
A．anxious B．content C curious D．serious