单项选择题

A．A scientist and his assistant.
B．A physician and a nurse.
C．A psychologist and a news reporter.
D．A professor and his student.
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单项选择题
A．They had to work during the performance.B．They couldn’t find time.C．They couldn’t afford to go.D．The tickets were sold out.
A．They had to work during the performance.
B．They couldn’t find time.
C．They couldn’t afford to go.
D．The tickets were sold out.
单项选择题
A．He doesn’t want to help.B．He isn’t able to work.C．He will help the woman later.D．He’d like to work here.
A．He doesn’t want to help.
B．He isn’t able to work.
C．He will help the woman later.
D．He’d like to work here.
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