单项选择题

By cutting down trees we ______ the natural home of birds and animals.

A．harm
B．hurt
C．injure
D．damage
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单项选择题
Though ______ rich, she was better off than at any other period in her life.
A．by means of
B．within her means
C．by all means
D．by no means
单项选择题
Mr. Robinson knew that the most trivial chore could prove to be a ______ if approached with enthusiasm.
A．prize
B．reward
C．refund
D．bonus
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