单项选择题

Which of tile following statements is TRUE（）

A．The total growth rate of world population will increase.
B．The growth rate of population in richer countries will increase.
C．The growth rate of population in poorer countries will increase.
D．The total growth rate in American countries will increase.

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单项选择题

The movie was very boring and many people began to leave early. By the end, most people （）.

A．had already left
B．were already leaving
C．were already left
D．had already been leaving

单项选择题

English words are not always spelled （）.

A．in the way they sound
B．in the way of their sounds
C．as they're sounding
D．the way they sound