单项选择题

Why will the population in poorer countries increase

A．Because they need more labor to support the family.
B．Because the people have the habit to have a big family.
C．Because the people there are poorer.
D．Because the people there want to be rich.

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单项选择题

Look after the people and the population will look after itself (the last paragraph) may probably mean ______.

A．Watch the people carefully and the population growth rate will drop
B．Control the people firmly and the population growth rate will go up
C．Take care of the people and the population growth rate will rise
D．Take care of the people and the population growth rate will go down

单项选择题

Were all three people in the car injured in the accident No, ______ only the two passengers who got hurt.

A．there is
B．it were
C．there was
D．it was