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Anonymous Posted 19 years ago
Grammar

To what extent...

Could someone help me with the following:

To what extent ARE/IS those theories valid?

To what extent the (those?) theories ARE/IS valid ARE/IS unknown

Thanks!
  

Top answer

To what extent ARE those theories valid? To what extent the/those theories ARE valid IS unknown.

— Mister Micawber

  • To what extent ARE those theories valid?
  • To what extent the/those theories ARE valid IS unknown.
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1 Answers
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To what extent ARE those theories valid?

To what extent the/those theories ARE valid IS unknown.
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