单项选择题

I don' t swim now, but I （） when I was a kid.

A．used to it
B．used to
C．used to doing it
D．used to do

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单项选择题
He had his leg （） when he slipped on a piece of ice.

A．breaking
B．broken
C．to break
D．break
单项选择题
This kind of trousers （） very well.

A．wash
B．washes
C．is washed
D．are washed
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