单项选择题

Maria specializes ______ mothers with their children.

A．for painting
B．with painting
C．in painting
D．to painting
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单项选择题
He was obliged to adapt himself ______ the habits and customs of Byron.
A．with
B．into
C．of
D．to
单项选择题
Science is still largely ignorant ______ the causes of many kinds of cancer.
A．about
B．of
C．with
D．to
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