单项选择题

A．Customer and salesman.
B．Colleagues.
C．Employee and boss.
D．Classmates.
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单项选择题
A．Sore!B．I agree with you.C．I need his help.D．Never mind.
A．Sore!
B．I agree with you.
C．I need his help.
D．Never mind.
单项选择题
Hardly ______ the audience started applauding.
A) had Prof. Smith finished his speech when
B) Prof. Smith had finished his speech when
C) had Prof. Smith finished his speech than
D) Prof. Smith had finished his speech than
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