As nobody here knows what is wrong with the machine, we ________send for an engineer to handle the problem.
| A．should | B．must | C．can | D．would |
—Can you tell the difference between these two pictures?
—Difference? Oh, no. They look quite .
| A．similar | B．different | C．strange | D．Interesting |
None of them talked. They finished their meal in .
| A．silence | B．order |
| C．place | D．public |
In cold winter, the temperature in Harbin often remains zero all day.
| A．above | B．below |
| C．over | D．under |
Some small shops in Britain usually close for hour at lunchtime.
| A．an; the | B．a; 不填 |
| C．a; the | D．an; 不填 |
Betty hasn’t got any hobbies you call sleeping a hobby.
| A．when | B．because |
| C．before | D．unless |