单项选择题

Questions 11--13 are based on the following passage.
How many languages are spoken in the world today

A. 4,500.
B. 4,000.
C. 3,500.
D. 3,000.
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单项选择题
How does the student feel after talking with Professor Weston
A. Confused.
B. Annoyed.
C. Surprised.
D. Encouraged.
单项选择题
What is the woman’s profession
A. A waiter.

B. A cook.
C. A salesman.

D. A shop assistant.
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