◎ 题干
The number of people in the world ________ about 6 billion and large quantities of waste ________ each year.
[     ]
A.totals; has been produced
B.totals; is produced
C.totals; are produced
D.total; are being produced
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“The number of people in the world ________ about 6 billion and large quantities of waste ________ each year.[ ]A.totals; has been producedB.totals; is produce…”主要考查了你对  【主谓一致】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。