Example sentences of "[pers pn] [vb base] their [noun sg] by [verb] " in BNC.

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1 We describe their behaviour by attributing our explanations to those individuals .
2 The falcons share with the owls ( p. 177 ) a number of marked behaviour differences from hawks , eagles , buzzards and other members of the Accipitridae ( p. 70 ) ; their droppings fall straight down from the perch instead of being squirted away ; they build no nest of their own ; they kill their prey by biting and severing the back of the neck ; they hold their food in one claw ; the young hiss when afraid or threatening ; and they may bob their heads to show curiosity .
3 They begin their analysis by producing evidence which shows that
4 Genes are made of the nucleic acid DNA , and they exert their effect by determining which proteins are made in the cell .
5 However , many have taste receptors on their mouthparts or feet , to identify the food they land on , while they find their food by detecting chemicals at a distance — the sense which we call smell .
6 Possessing no ecclesiastic franchise , they expiate their grief by posting an In Memoriam notice .
7 Now , unemployment among unskilled black people is six times higher than among whites , because employers have to pay the same rate to both , and they express their prefence by choosing white employees .
8 They express their anger by destroying their own lives and thereby hurting others , while seeming to be wide-eyed and innocent .
9 They subsidise their income by doing odd jobs for Marley Paving .
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