摘要：7．The population of Africa is so rapidly as to cause concern of the whole world. A．expanding B．stretching C．extending D．spreading
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The population of Africa is ________ so rapidly as to cause concern of the whole world.
A. expanding B. circulating C. exporting D. spreading
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The population of Africa is________so rapidly as to cause concern of the whole world.
A．expanding B．stretching
C．extending D．spreading
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The population of Africa is ________ so rapidly as to cause concern of the whole world.
- A.expanding
- B.circulating
- C.exporting
- D.spreading