More and more people have a low-C life and the air is getting much
than a few years ago.
| A．clean | B．cleanest | C．cleaner | D．the cleanest |
—Are these buses?
—________________.
| A．Yes, these are. |
| B．Yes, they are. |
| C．Yes, they aren’t. |
| D．Yes, these aren’t |
— This is my ruler. _________ the blue pens?
— They are Helen’s.
| A．What | B．How |
| C．What about | D．Where’re |
I am not tidy, ________my brother is.
| A．and | B．but | C．/ | D．then |
Please call Mike _________ 235-0285.
| A．for | B．at |
| C．to | D．in |
What’s that ________ Chinese?
| A．with | B．to |
| C．in | D．at |