单项选择题

Questions 16-17 are based on the passage you have just heard.

A．They are in land.
B．They are seaports.
C．They are agricultural.
D．They are safe.
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单项选择题
A．MondayB．TuesdayC．WednesdayD．Thursday
A．Monday
B．Tuesday
C．Wednesday
D．Thursday
单项选择题
A．You worked hard.B．You have passed the exam.C．You didn’t work hard.D．Your work is hard to pass.
A．You worked hard.
B．You have passed the exam.
C．You didn’t work hard.
D．Your work is hard to pass.
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