单项选择题

What you do in your spare time is your own ______. However it should not be harmful to others.

A．business
B． purchase
C．bargain
D．sale
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单项选择题
He didn’t feel like ______ that day so he stayed indoors reading.
A．working
B． works
C．to work
D．worked
单项选择题
--Did Charles vote in the last election--No, he wasn’t ______.
A．enough old then
B．then enough old
C．ole then enough
D．old enough then
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