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.
查看答案
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
听力原文：M: Mary, have you seen Helen this term？ Isn't she teaching in this school？
W: No, she's fired.
Q: Why doesn't Helen teach here？
(5)
A. Because she is ill.
Because she lost her job.
C. Because she is not a teacher.
D. Because she gets another job.
微信支付 
支付宝支付