—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
考查主谓一致及时态。large quantities of +不可数名词,谓语动词用单数,根据句意用现在完成时。句意:——为什么这湖这么难闻?——因为大量的水已经被污染了。 |
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