单项选择题

Please do not hesitate to call me if I can be of further assistance.（）

A．contact
B．see
C．help
D．touch

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单项选择题

She seemed to have detected some anger in his voice.（）

A．noticed
B．heard
C．realized
D．got

单项选择题

I am not certain whether he will come.（）

A．determined
B．sure
C．sorry
D．glad

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