Example sentences of "they must be [adj] " in BNC.

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1 If coal is to be the choice , does my right hon. Friend agree that scrubbers are essential at coal-fired power stations and the type of coal put into them must be low in sulphur dioxide emissions ?
2 If a sequence of six enzymes is needed for a particular synthetic pathway , all six genes for making them must be present .
3 Each of them must be aware of what that role is and understand how crime affects profitability , investment and employment opportunities .
4 Since the majority of modern machines have airbrakes which are held closed by a geometric lock , it is essential that the method of checking them must be foolproof for this kind of system .
5 Anyone who had this kind of machine behind them must be important , so it had the effect of presenting him to the public as this bigger than life pop star which , if you look at his record sales at the time , he was n't , but he was becoming a media myth , some of this due to his own talent and some of it due to the MainMan hype machine .
6 Put crudely , that law states that if A contradicts B , at least one of them must be false .
7 The important point , however , is that the two " likes " must be treated as like in some respect ; and in the linguistic cases this does not merely mean that the two items co-ordinated must be on the same level in terms of specific syntactic classifications , as has often been remarked ; more importantly , it is clear that they must be alike in both bearing one of the other relations , already introduced , to some third element ; thus , in : ( 38 ) Nora is Irish and beautiful the structure is such that Irish and beautiful are both related to Nora by assignment , while in : ( 39 ) bed and board is going to take half his wages the relation of instantiation links both bed and board to the single entity in the subject position .
8 They must be strong enough to do it .
9 They must be strong in the legs !
10 They must be proud of you . ’
11 They must be proud of you .
12 They must be available accurately and consistently if they are to be relied upon .
13 Only one arrangement looked as though it belonged together : those two lines of dots and blanks , they must be binary numbers .
14 It 's once you try and when you think , Well they must be real and I 'm missing the point .
15 Surely they must be familiar with his writing ?
16 Indeed they must be pleased by the traces of evidence that suggest that bias in a freely chosen medium such as a newspaper is actually popular with the electorate rather than resented .
17 Similarly they must be pleased by the traces of evidence that suggest partisan voters find the relative impartiality of television news somewhat irritating .
18 Sure an' they must be pleased seein' the geddle come up in the world like she has . ’
19 where branches are silouetted against the colours of the sunset they must be rich and strong enough to help intensify the sense of the light coming through then , but not so rich that they seem to close , or start to compete with the same thing happening in the ripples that form their reflection .
20 Melanie wondered if they would go to church , to Midnight Mass , because she , in a muddled way , thought they must be religious if they believed so firmly in Hell .
21 And when you think about it they must be illegal , cos if a shop puts up a sign saying no money refunded they are , are trying to take away your statutory rights .
22 Non-banks , by and large , have accepted for longer that they must be cost-effective and efficient to survive .
23 Plymouth have an appalling away record but they must be buoyant after their Roker Park win .
24 If they hoped that freedom would automatically bring intellectual variety and competition they must be disappointed with the press and pessimistic about the effects of deregulation on broadcasting , however .
25 Even the process of normal development required something of self-sacrifice about it , as women learned that instead of their early pleasures they must be content with the possibility of having a child .
26 And with that they must be content .
27 These were made almost certainly in the twelfth century , by Bishop Gut , founder of the cathedral , as a Latin inscription asserts , though there has been argument that they must be Gallo-Roman since the subject-matter is profane and improper for the patronage of a Christian bishop .
28 Students are encouraged to believe that they must be broad and hopefully able to cope with any Physical problem .
29 They must be correct down to the last detail , in the interests of those who will be affected and in the interests of the project .
30 If we appear to be unable to do without families , then they must be beneficial for us .
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