单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．About human beings.
B．About mosquitoes.
C．About the earth.
D．About insects.
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单项选择题
People migrated to America for the following reasons except ______.
A．searching for religious freedom
B．breaking with past cultural inheritance
C．escaping political oppression
D．searching for riches
单项选择题
A．He was watching the documentary on TV.B．He was attending a party.C．He was watching a movie.D．He was attending a meeting.
A．He was watching the documentary on TV.
B．He was attending a party.
C．He was watching a movie.
D．He was attending a meeting.
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