—Why does the lake smell terrible?—Because large quantities of water____________
题型：不详难度：来源：
—Why does the lake smell terrible?
—Because large quantities of water_______________.| A．have polluted | B．is being polluted | | C．has been polluted | D．have been polluted |
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答案
| D |
解析
| D解析：本题将主谓一致和语态两个考点一起考查。large quantities修饰名词作主语时，谓语动词用复数，water和pollute之间是被动关系，故正确答案为D。 |
举一反三
| The factory used 65 percent of the raw materials,the rest of which saved for other purposes. |
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