Q27: 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. - number of wild salmon have been reduced because of uncontrolled deep-sea and coastal netting
- number of wild salmon is reduced because deep-sea and coastal netting is not controlled
- numbers of wild salmon has been reduced because of uncontrolled deep-sea and coastal netting
- wild salmon’s numbers are reduced by deep-sea and coastal netting that is not controlled
- wild salmon’s numbers have been reduced by uncontrolled deep-sea and coastal netting
Answer: I don't know why E is the right answer? how to differentiate the use of "numbers" and "number" in a sentence? I just remembered that
the number of +subject (pl.) + v. (simple)
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