单项选择题

The professor could hardly find sufficient grounds ______ his arguments in favor of the new theory.

A．to be based on
B．to base on
C．which to base on
D．on which to base
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单项选择题
This book is about how these basic beliefs and values affect important ______of American life.
A．facets
B．formats
C．formulas
D．fashions
单项选择题
Susan is very hardworking, but her pay is not ______for her work.
A．enough good
B．good enough
C．as good enough
D．good as enough
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