Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．pack up | B．build up |
| C．bring up | D．take up |
—Which of the two English films do you like better?
— __________ shorter one, of course. I think it's really __________ most instructive one.
| A．A; the |
| B．The; the |
| C．The; a |
| D．A; a |
__________ about what he had done, the shy boy ran away as fast as possible.
| A．Having embarrassed |
| B．Embarrassing |
| C．To embarrass |
| D．Embarrassed |
Finding the __________ look on the students' faces, the professor felt __________ about his explanation.
| A．confusing; embarrassed |
| B．confused; embarrassed |
| C．confused; embarrassing |
| D．confusing; embarrassing |
When it was his turn to deliver his speech, __________, he walked towards the microphone.
| A．nervously and embarrassingly |
| B．nervous and embarrassedly |
| C．nervously and embarrassing |
| D．nervous and embarrassed |
We drove all the way to the beach, __________.
| A．have fun |
| B．just for fun |
| C．make fun of |
| D．have a fun |