The use of the chemical may present a certain hazard to the laboratory workers

A. protection

B. indication

C. immunity

D. danger

2.They agreed to settle the dispute by peaceful means.

A. solve

B. determine

C. untie

D. complete

3.The children trembled with fear when they saw the policeman.

A. wept

B. cried

C. ran

D. shook

4.We have got to abide by the rules.

A stick to

B. persist in

C. safeguard

D. apply

5.The river widens considerably as it begins to turn east.

A. extends

B. stretches

C. broadens

D. traverses

6.The curious look from the strangers around her made her feel uneasy.

A. difficult

B. worried

C. anxious

D. unhappy

7.Reading the job ad, he wondered whether he was eligible to apply for it.

A. competitive

B. diligent

C. qualified

D. competent

8.These are our motives for doing it.

A. reasons

B. arguments

C. targets

D. stimuli

9.Smoking is not permitted in the office.

A. probably

B. possible

C. admitted

D. allowed

10.I feel regret about what's happened.

A. sorry

B. disappointed

C. shameful

D. disheartened

11.They always mock me because I am ugly.

A. smile at

B. look down on

C belittle

D. laugh at

12.Guests were scared when the bomb exploded.

A. frightened

B. killed

C. endangered

D. rescued

13.They are endeavoring to change society as a whole

A. trying

B. working

C. doing

D. making

14.The story was touching.

A. inspiring

B. boring

C. moving

D. frightening

15.Although originally a German innovation, kindergarten got its real start in the United States as a movement to provide an improved learning environment for children.

A. an easy

B. a playful

C. an open

D. a better