How did Keyling reach London？
A. Keyling reached London by sailing around the tip of Africa.
B. Keyling got to London by air.
C. Keyling reached London by sailing completely around the world.
D. Keyling reached London by crossing both the Pacific Ocean and the Atlantic Ocean.
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What's the meaning of "prepare" in Line 2, Para.2？
A. To make ready.
B. To make fit.
C. To make in a special way.
D. To make accustomed.
听力原文：Who recommended Dr. Allen to Mr. Johnson？
(9)
A. His last dentist.
B. His mother.
C. A salesman.
D. His friend.
According to the author, it was a mistake to think of the Chinese as ______.
A. people who were only good at trade.
B. famous sailors.
C. people who were not accustomed to seas and ships.
D. people who were skillful in boat -building.
Professor Harry L. Fisher was asked to ______.
A. help develop a chemical weapon
B. prepare chemical compounds
C. decide the effect of sulfur
D. test a list of 20 compounds
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