1 . The supermarket has installed security cameras to ________ thieves.

A．foster

B．complain

C．edit

D．deter

2 . One difficult task faced by both developed and developing countries is to guarantee the ________ of natural resources at the lowest possible environmental cost.

A．inspection

B．exploitation

C．contradiction

D．exception

3 . The school has ________ our plan to build a new garden, so work can begin immediately.

A．postponed

B．approved

C．imitated

D．conquered

4 . It is commonly known that many old people feel pains in their bones when ________ rises.

A．humidity

B．pesticide

C．antibiotic

D．intensity

5 . To make ends meet, you need to have a more ________ approach to the way you spend.

A．distracted

B．disciplined

C．desperate

D．depressed

6 . According to the results, voters' opinions differ on a variety of ________ issues, such as gun control, illegal immigration and so on.

A．nonessential

B．controversial

C．financial

7 . The smoke ________ by the chemical factories is polluting our air and we have to take action immediately.

A．distracted

B．released

C．enrolled

8 . Though Sam's music player didn't work well, he was ________ to throw it away.

A．reluctant

B．steep

C．extensive

9 . He is a wonderful ________ of mine and we can talk for hours on end.

A．component

B．committee

C．community

D．companion

10 . The company offers its employees a ________ training in all aspects of the business.

A．compassionate

B．contemporary

C．comprehensive

D．countable