Câu hỏi: It is very difficult for human beings fighting pollution.

A. difficult

B. for

C. beings

D. fighting

Câu 1: When you are writing or speaking English it is important to use language that includes both men and women equally the same.

A. are

B. to use

C. both

D. equally the same

Câu 2: Aristotle, the famous Greek philosopher, believed that the brain was an organ that cooled a heart.

A. the famous

B. the brain

C. an organ

D. a heart

Câu 3: Anyone reproducing copyrighted works without permission of the holders of the copyrights are breaking the law.

A. reproducing

B. are

C. breaking

D. the law

Câu 4: In a federal form of government like that of the United States, power is divided between the legislative, executive, and judicial branches.

A. like

B. that of the United States

C. is divided

D. between

Câu 5: Sex's education is instituted to help the student understandthe process of maturation, to eliminate anxieties related to development, to learn values, and to prevent disease.

A. sex’s education

B. understand

C. to eliminate anxieties

D. related

Câu 6: The children next door are a real nuisance. Their football is always coming on the fence and damaging the flowers in my garden.

A. next door

B. a real nuisance

C. on

D. damaging