单项选择题

A．Once.
B．Three times.
C．Four times.
D．Twice.
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单项选择题
A．Yes, my name is Zhao Hua.B．Yes, I’m Zhao Hua.C．Yes, this is Zhao Hua speaking.D．Yes, Zhao Hua is me.
A．Yes, my name is Zhao Hua.
B．Yes, I’m Zhao Hua.
C．Yes, this is Zhao Hua speaking.
D．Yes, Zhao Hua is me.
单项选择题
A．Ok.B．Yes, please.C．Of course not.D．Do it please.
A．Ok.
B．Yes, please.
C．Of course not.
D．Do it please.
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