单项选择题

How much of the world's land surface is at risk of becoming desert

A．Less than ten million square kilometers.
B．Twenty million square kilometers.
C．Mom than twenty million square kilometers.
D．30% of the world's land surfac

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单项选择题

He is often inclined to ______ in other people's affairs, which is none of his business.

A．manipulated
B．lumbered
C．meddle
D．littered

单项选择题

He was ______ to take over the duties and responsibilities of his father from an early age.

A．deduced
B．damped
C．diminished
D．destined