单项选择题

Contact me at once _______ any problem.

A．you should have
B．have you
C．should you have
D．you have
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单项选择题
Fiona's anxiety about her husband made her a too _______ visitor at the lawyer's office.
A．haunted
B．obsessed
C．lingering
D．frequent
单项选择题
Bradley Headstone, in his _______ black coat and waistcoat looked like a person of German
A．descent, decent
B．decent, descent
C．accent, decent
D．ascent, accent
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