题目:
In Scotland, the number of wild salmon have been reduced because of uncontrolled deep-sea and costal netting, by pollution, and by various other threats to the fish's habitat.
选项:
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:
E