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
We don't doubt () he can do a good job.

A.whether
B.that
C.how
D.why
单项选择题
--Whom do you want to see at the moment --The man () Mr Zhang.

A.calls himself
B.you call
C.calling himself
D.is called
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