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
Prof Flynn found no students in the lecture hall when he arrived. Only then did he realize that he came _______ early.
A．too much
B．much too
C．so much
D．much so
单项选择题
Young children soon _______ words they hear their elders use.
A．put forward
B．mm up
C．pick up
D．use up
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