The number of people in the world__________ about 6 billion and large quantities of waste ____ each

题目简介

The number of people in the world__________ about 6 billion and large quantities of waste ____ each

题目详情

The number of people in the world__________ about 6 billion and large quantities of waste ____ each year.
A.total; has been producedB.totals; is produced
C.totals; are producedD.total; are being produced
题型:单选题难度:中档来源:不详

答案

C

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