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单项选择题

A．Librarian and student.
B．Boss and secretary.
C．Operator and caller.
D．Customer and repairman.
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热门试题

单项选择题A．Yes, I look pale.B．I’ve got a headache.C．Nor am I.D．Don’t mention it.

A．Yes, I look pale.
B．I’ve got a headache.
C．Nor am I.
D．Don’t mention it.

单项选择题A．Thanks a lot.B．Can I help youC．What shall I doD．Here you are.

A．Thanks a lot.
B．Can I help you
C．What shall I do
D．Here you are.