单项选择题

As to the lost world of Egypt, we know nearly everything ______ to know.

A．there is
B．it is
C．which is
D．what is
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单项选择题
In his culture, ______ it was, this exchange of names on pieces of paper was probably a formal politeness, like saying thank you.
A．all that
B．whatever
C．whichever
D．what
单项选择题
The mother separated the quarreling children, and gave each of them a sharp ______.
A．punch
B．pinch
C．puppy
D．pumpkin
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