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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单项选择题
A．The scientist is too timid to exchange seats.B．The broken seat distresses the scientist’’s liver.C．It’’s the first time the scientist be ashen and distraught.D．No one sits in the seat facing the scientist.
A．The scientist is too timid to exchange seats.
B．The broken seat distresses the scientist’’s liver.
C．It’’s the first time the scientist be ashen and distraught.
D．No one sits in the seat facing the scientist.
单项选择题
A．His telephone went out of order.B．The buyers had to leave soon.C．He began to work at 8 a. m.D．He had made an appointment with her for 8 a. m.
A．His telephone went out of order.
B．The buyers had to leave soon.
C．He began to work at 8 a. m.
D．He had made an appointment with her for 8 a. m.
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