单项选择题

Questions 19 to 21 are based on the conversation you have just heard.

A．To mention other space programs.
B．To incorporate pictures into the paper.
C．To keep working on the original subject.
D．To search for information on the Internet.
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单项选择题
A．He lost a button at work.B．He doesn’t know where he put the calculator.C．He thought he broke something the woman lent him.D．He’s not sure how to solve the math problem.
A．He lost a button at work.
B．He doesn’t know where he put the calculator.
C．He thought he broke something the woman lent him.
D．He’s not sure how to solve the math problem.
单项选择题
A．An air-hostess.B．A physics scientist.C．A chef in a French restaurant.D．A typist in a large company.
A．An air-hostess.
B．A physics scientist.
C．A chef in a French restaurant.
D．A typist in a large company.
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