23. What negative effect can be caused by worker’s discontent?

A. 　 The colleges, government and the students.

B. 　 The colleges, parents and the students.

C. 　 The public, government and the whole society.

D. 　 The parents, the public and the whole society.

A. 　 The economic condition of a country.

B. 　 Historical studies on World War II.

C. 　 People’s attitudes towards divorce.

D. 　 The religion people believe in.

I. 　

A. 　Ten people were killed.

B. 　Two people were killed.

C. 　A helicopter crashed into a reservoir.

D. 　A helicopter dropped in the wilderness.

A. 　 more poor children will get benefited

B. 　 more public schools will have to be closed

C. 　 it will arouse more people's dissatisfaction

D. 　 No Child Left Behind Act will be realized sooner

A. 　 Getting to the top of a high hill.

B. 　 Resting for a short moment.

C. 　 Enjoying sunshine on the beach.

D. 　 Viewing the bridge from a hill.

A. 　 Brown rice can increase the risk of disease, while white rice cannot.

B. 　 Brown rice is the grain in its natural form, while white rice in refined form.

C. 　 Brown rice is more refined than white rice.

D. 　 White rice is less nutritious than brown rice.

A. 　 How to reduce living expenses in our homes.

B. 　 How to recycle used bottles in our life.

C. 　 How to grow green plants for our homes.

D. 　 How to reuse items to live a green life.

A. 　 raw

B. 　 rough

C. 　 crude

D. 　 tough

A. 　The security camera installed may intrude into their privacy.

B. 　They don’t want their photos to be circulated on the Internet.

C. 　 The security camera may turn out to be harmful to their health.

D. 　 They may not be willing to interact with your family members.

A. 　 He suffered a fatal injury in an accident.

B. 　 He once served in a fire department.

C. 　 He was collecting building materials.

D. 　 He moved into his neighbor’s old house.