单项选择题

A．They will gradually die out.
B．They will be able to survive in the preserves.
C．They will have to migrate to find new homes.
D．They will face extinction without artificial reproduction.
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单项选择题
There is national shortage of teachers in areas such as science and religion in Australia.
A．Y
B．N
C．NG
单项选择题
A．Nineteen million dollars.B．Thirty-two million dollars.C．Thirty-seven million dollars.D．Forty-two million dollars.
A．Nineteen million dollars.
B．Thirty-two million dollars.
C．Thirty-seven million dollars.
D．Forty-two million dollars.
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