Shortly after the traffic accident, two _______police were sent to the spot to keep order.
| A．dozen of | B．dozens | C．dozens of | D．dozen |
In a few years, China will be able to produce camera recorders on a large ______.
| A．scale | B．extent | C．degree | D．range |
At the end of the class, the teacher _______ the main points of the lesson in three sentences.
| A．summed up | B．picked up | C．brought up | D．took up |
The bridegroom, together with the bride, went into the hall, with a flower ______ onto his suit.
| A．stuck | B．pinned | C．locked | D．bound |
She sings quite well. But _____, she is an English teacher, not a music teacher.
| A．as a result | B．as a rule | C．as a whole | D．as a matter of fact |
The plan was canceled after someone presented _____ objections to it at the meeting.
| A．operative | B．efficient | C．valid | D．secure |