Example sentences of "why do [pron] [verb] two [noun] " in BNC.

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1 Why did they wait two days before making contact ?
2 I mean , why do we need two mathematicians ?
3 Why do we need two nurses going round with a medicine tray ?
4 But why do we have two eyes and not just one ?
5 And you may say well why do I have two pairs of fins , you know , one in front and one behind , instead of , say , three pairs of fins , or one pair of fins , or eight pairs of fins — why do we all have two ?
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