请教PREP08一道题

葱花kdku · 发表于 2017-10-9 12:53:28

附上原题：
In Scotland, the number of wild salmon have been reduced because of uncontrolled deep-sea and coastal netting, by pollution, and by various other threats to the fish’s habitat.
A.       number of wild salmon have been reduced because of uncontrolled deep-sea and coastal netting,
B.       number of wild salmon is reduced because deep-sea and coastal netting is not controlled,
C.       numbers of wild salmon has been reduced because of uncontrolled deep-sea and coastal netting,
D.       wild salmon’s numbers are reduced by deep-sea and coastal netting that is not controlled,
E.       wild salmon’s numbers have been reduced by uncontrolled deep-sea and coastal netting,

我的疑问是D和E选项为什么这里的are和have用了复数，明明前面不是the number of要用单数的吗

正确答案是E

葱花kdku · 发表于 2017-10-9 12:59:55

我知道了...

请教PREP08一道题

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