单项选择题

A．in
B．at
C．with
D．on
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单项选择题
A．Boss-Secretary.B．Client-Lawyer.C．Student-Teacher.D．Patient-Nurse.
A．Boss-Secretary.
B．Client-Lawyer.
C．Student-Teacher.
D．Patient-Nurse.
单项选择题
A．rightB．straightC．correctD．good
A．right
B．straight
C．correct
D．good
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