Which of the following is NOT mentioned in paragraph 2?
A.An eight-day-old child will be taken for the first walk by his or her mother.
B.Children have to learn their tribes' cultures and traditions when they are old enough.
C.Children are initiated for a mature life in the presence of their friends and family.
D.Children have to overcome a few trials to enter the grown-up world.

What does the word "they" in paragraph 3 refer to?
A.the Maasai herds
B.the wild animals
C.the young warriors
D.the cattle owners

The word "gathering" in the second paragraph refers to .
A.people
B.information
C.objects
D.substances

It can be inferred from the passage that .
A.Samuel Morse did not make a significant contribution to the communications industry
B.Morse's invention did not immediately achieve its full potential
C.The extension of the telegraph was more important than its invention
D.Journalists have the Associated Press to thank for the birth of the communications industry

What is the author's main purpose in writing this passage?
A.To explain the concept of labor.
B.To criticize certain uses of capital.
C.To contrast capital goods and consumer goods.
D.To define economic resources.

The word “inferior” in the passage is closest in meaning to .
A.modern
B.low-quality
C.well-equipped
D.unsafe

What does the word “that” in the passage refer to?
A.males
B.native Americans
C.the risk
D.African-Americans

Which of the following is NOT mentioned as a reason for a higher accident rate among the poor?
A.Little knowledge about safety.
B.Inadequate medical services.
C.Poor housing and working conditions.
D.Use of cars which incorporate fewer safety features.

The writer says that in the past .
A.people didn't invent many things
B.people didn't want to use wheels
C.most inventions were to do with farming
D.it took time for new ideas to change things

Why does the writer use the example of the aeroplane?
A.To explain why transport changed in the 20th century.
B.Because he thinks It's the most important invention in history.
C.To explain how space travel started.
D.To show how an invention developed quickly.