According to the author, many teenagers think they are brave enough to act on their own, but in fact most of them _______.

A. readers how to be popular with people around

B. teenagers how to learn to make a decision for themselves

C. parents how to control and guide their children

D. people how to understand and respect each other

A.situations B.happenings C.conditions D.facts

A.affected B.have affected C.are affecting D.affect

A.who B.that C.when D.whose

A.of the celebrations B.they are important

C.there are special ceremonies D.societies share common characteristics

A.celebrate the three main events in life, but in different ways

B.are not affected by these three events

C.celebrate these three events in exactly the same way

D.are the same

A.the characteristics of American newspapers

B.the development of American newspapers

C.the functions of American newspapers

D.the merits and shortcomings of American newspapers

A.a machine for printing B.the business of printing

C.great force D.newspapers

A.supporting extremist groups from time to time

B.inviting middle-of-the-road Americans to write articles for them

C.avoiding carrying articles about extremists

D.printing articles representing different political viewpoints

A.they have to keep up a good relation with them

B.they have to compete with television

C.they have to write about crime, sex and rumor

D.they have to give factual news in an interesting way