1 . A week later, they were asked to sleep for only four hours every night for two nights ________.

A．in a row

B．in doubt

C．in question

D．in vain

2 . They said the greatest virtues in a politician were ________, correctness and honesty.

A．concept

B．deposit

C．evolution

D．integrity

3 . The company ______ as a failure ______ into a major chemical manufacturer in the past decade.

A．regarded; evolved	B．regarded; has evolved
C．was regarded; evolved	D．has been regarded; has evolved

4 . Smoke alarms are used to quickly _____ fire or smoke in a building and give an early warning.

A．reflect

B．disturb

C．detect

D．represent

5 . We clean and repair the machines before leaving work every day as a matter of ________.

A．evidence

B．routine

C．virtue

D．election

6 . One mistake will probably lead to another one. This is called a chain ______.

A．creature

B．solution

C．reaction

D．advance

7 . Of the five passengers on the crashed plane, only one ______.

A．survived

B．recovered

C．apologized

D．improved

8 . ________ a person’s good qualities, we value honesty and generosity most.

A．In honour of

B．In terms of

C．In case of

D．In favour of

9 . In your application form for the job, you’d better ________ a photo of yourself so that the employer can get to know you better.

A．attach

B．adjust

C．confirm

D．load

10 . You need to ________ the button on the machine to get it working.

A．press

B．shoot

C．compute

D．strike