Example sentences of "[prep] [be] [adj] that [noun sg] " in BNC.

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1 Although the Yerkes-Dodson law provides an additional prediction which can be tested , it suffers firstly from the problem that it is often impossible to define task difficulty a priori and secondly that even when this is done successfully it is very hard to be sure that task difficulty does not itself affect arousal .
2 As a result , it is often difficult to be sure that breeding males fertilize all the females in the groups that they guard : for example , even if territorial male red-winged blackbirds ( Agelaius phoeniceus ) are vasectomized , their females sometimes lay fertile eggs ( Bray , Kennelly & Guarino , 1975 ) .
3 From these examples it will begin to be apparent that witchcraft is invoked as a causal explanation of irregularities .
4 Kate could hardly fail to be aware that Ace was now reliving the past .
5 It is important to be aware that trade unions are organisations in their own right , and we must not assume too hastily or too readily that the goals of a trade union organisation are the same as those of its members or full-time officials .
6 Although we need not spend much time on it , it is important to be clear that Marxism is atheistic .
7 However it is important to be clear that Compact is not a mechanism for enabling employers directly to influence the curriculum in schools .
8 First , by being aware that relapse is a process .
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