Ladies and gentlemen, please ______ seated until the plane has come to a complete stop.
| A．remain | B．keep | C．go | D．get |
To their great fear, they found _______ in the heaviest snowfall they had ever had.
| A．they were catching |
| B．themselves caught |
| C．they had caught |
| D．themselves catching |
—Why did Sam weep?
—He couldn’t stand _______ like that before the whole class.
| A．making fun of |
| B．being made fun of |
| C．to be laughed at |
| D．being made fun |
—Have you _______ any information?
—No, I’m going to _______ the business department.
| A．picked up; call at |
| B．picked out; call on |
| C．got; call on |
| D．received; drop in |
When you come to the fence, you can see a notice _______ there saying “the grass.”
| A．putting up; Keep off |
| B．putting up; Keep away |
| C．put up; Keep out |
| D．put up; Keep off |
Everyone here will thank the firefighters for the things they have done to prevent fires _______ the environment safer.
| A．make | B．to making |
| C．to make | D．from making |