单项选择题

If we go on consuming energy so wastefully, ________ are our oil wells will be dried up before new energy resources can be found to replace oil.

A．chances
B．opportunities
C．questions
D．problems
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单项选择题
They were ________ hurt by your rude remarks.
A．very much
B．badly
C．seriously
D．costly.
单项选择题
_______ we could afford it, we wouldn't go abroad for our holidays.
A．Provided
B．Even if
C．Whatever
D．As if
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