Farmers stored up a great _____ of wheat and a _____ of beans this year.

A．number; lot 　

B．deal; number

C．plenty; lots 　

D．deal; pack

 

【答案】

B

【解析】略

 

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That’s just the beginning, Wambugu believes. Genetically modified (轉(zhuǎn)基因的) foods, she thinks, could help farmers in poor countries grow badly needed crops, thus, fewer people will go hungry.
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【小題2】What caused Wambugu to set up a lab in St. Louis, Missouri?
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B．Her great interest in genetic engineering.
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By the early 1900s, “koalas were basically shot out of south Australia,” says ecologist Bill Ellis, who studies the relationships among living things and their environments.

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