单项选择题

It is said in the book that Thomas Edison (1847～1931 ) ______ the world leading inventor for sixty years.

A．would be
B．has been
C．had been
D．was
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单项选择题
--The boy is Telling a lie. --How do you know --His face has given him ______.
A．off
B．up
C．away
D．out
单项选择题
--Mum, I've been studying English since 8 o'clock. ______ I go out and play with Tom for a while --No, I'm afraid not. Besides, it's raining outside now.
A．Can't
B．Wouldn't
C．May not
D．Won't
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