单项选择题


A．help
B．do
C．manage
D．stop
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单项选择题
A．valuableB．enoughC．muchD．good
A．valuable
B．enough
C．much
D．good
单项选择题
A．a good manyB．more or lessC．more and moreD．a small number of
A．a good many
B．more or less
C．more and more
D．a small number of
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