单项选择题

A．1.4 billion.
B．One fifth of the world’s population.
C．70 percent of the world’s population.
D．50 million.
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单项选择题
A．Susan should not be driving.B．Susan is not going to the party.C．Susan is not a driver.D．Susan is not kind enough to give the woman a ride.
A．Susan should not be driving.
B．Susan is not going to the party.
C．Susan is not a driver.
D．Susan is not kind enough to give the woman a ride.
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