209.(29580-!-item-!-188;#058&004295)(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,
答案选择E。
想知道D为什么不可以~~谢谢大家~~~万分感谢~~~
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