In 1955, Martin Luther King Jr. gained national recognition for his nonviolent methods used in a bus boycott (抵制) in Montgomery. This peaceful boycott, under Dr. King's guidance, changed the law which required black people to ride in the backs of buses. After this success, Dr. King used his nonvio­lent tactics in efforts to change other discriminatory (种族歧视的) laws.
Dr. King urged Blacks to use nonviolent sit-ins, marches, demonstrations, and freedom rides in their efforts to gain full freedom and equality. Arrested for breaking discriminatory laws, Dr. King went to jail dozens of times, he became a symbol around the world for people to protest peacefully against un­just laws. In recognition of his work for peaceful changes, Dr. King received the 1964 Nobel Peace Prize.

1. According to this passage, as a consequence of his protest in 1955, Dr. King became _________.
A. peaceful in his tactics B. famous in the United States
C. frustrated in his efforts D. successful in the transportation business
2. It can be inferred from the passage that Dr. King continued his nonviolent methods because ____.
A. they were legal in Montgomery
B. they were effective
C. most people are incapable of violence
D. most people believed he would receive the Nobel Peace Prize
3. Which of the following is mentioned in the passage as a means by which Dr. King tried to bring about social justice?
A. Store boycotts. B. Congressional debates.
C. Peaceful marches. D. Visits to jails.
4. According to the passage, how many times was Dr. King put in jail?
A. One. B. Between two and ten.
C. Twelve. D. At least twenty-four.
5. The author implies that in the 1960's Dr. King was known __________.
A. to few people in Montgomery B. to people in many countries
C. primarily by the medical profession D. personally by several lawyers