T-3-Q7？

T-3-Q7.
         

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

 这题考点是什么？答案怎么是E？

只见过the number of         numbers of       ，the wild salmon’s numbers have been 感觉好奇怪？

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