______ its size with that of the whole earth, we find the highest mountain does not seem high at all.
| A．When compared | B．Compared to |
| C．To be compared | D．Comparing |
—Where can I see Tom?
—I don’ know where he is. He hasn’t arrived ___ .
| A．still |
| B．already |
| C．yet |
| D．since |
— What do you think of the two cars?
— The one is ___ than that one.
| A．Good |
| B．Well |
| C．Much better |
| D．The best |
— I think it’s a good idea to have classes on the Internet.
— ______ . I don’t want to stay at home alone.
| A．I agree |
| B．You are right |
| C．I don’t think so |
| D．Of course not |
Come on, Tom! Keep ___ . Don’t give up.
| A．Runs |
| B．To run |
| C．Running |
| D．Runing |
When she saw a boy fall off his bike, she stopped ___ him.
| A．to help |
| B．helping |
| C．help |
| D．helps |