Example sentences of "[was/were] thought [prep] [be] responsible " in BNC.
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1 | Modern farming methods , particularly in arable crop fields , were thought to be responsible for the declines . |
2 | The chief of staff was believed to be Colonel Lee Hwal , who had been educated in Japan ; he was thought to be responsible for the organisation of the North Korean air force . |
3 | At one time , two-pipe house drainage systems were designed to keep waste water and soil water completely separate until they entered the underground drains and to prevent ‘ drain air ’ entering the house : in Victorian times this was thought to be responsible for all manner of ills . |
4 | The RAF was thought to be responsible for 32 murders over 20 years , the most recent being that in April 1991 of Detlev Rohwedder , head of the Treuhand privatization agency [ see p. 38155 ] . |
5 | Because it is also present in some beverages histamine was thought to be responsible for the acid secretory capacity of the beverages . |