单项选择题

I think it _ high time they _ to take you more seriously.

A．was, began
B．is, should begin
C．should be, begin
D．is, began

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单项选择题

Those joint ventures in China enjoy certain ___________ that other enterprises do not.

A．advantages
B．privileges
C．priorities
D．rights

单项选择题

Newton ___________ his great achievements more to his hard work than to his intelligence.

A．attributed
B．devoted
C．treated
D．regarded

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