单项选择题

Mr. Black ______ in summer in the lake near his house. But now it is heavily polluted.

A．used to swim
B．used to swimming
C．were used to swim
D．was used to swimming
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______ you are well again, you can take charge of the work yourself.
A．Although
B．Now that
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I'd rather you ______ to accompany me during the Spring Festival.
A．should come
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