Example sentences of "must have been responsible for " in BNC.

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1 Robin Cranko thinks that one of them , if not both , must have been responsible for some branches of the Cranko family whom he came across during his researches .
2 His 19th C. biographer Charles Roeder tentatively puts it at 1000 finished pictures ; and the constant flow of visitors to his annual exhibitions in Ambleside and Keswick must have been responsible for carrying his work all over Britain .
3 The constant flow of visitors to his annual exhibitions in Ambleside and Keswick must have been responsible for carrying his work all over the country .
4 An itch of fascination at this utterly different , aberrant creature twisted within Lexandro , into rage — at the sly , inhuman intelligence which must have been responsible for the loss of those brave champions of Humanity who now lay lifeless in caskets .
5 This extraordinarily convoluted definition , the whole of which is in italics , must have been responsible for deterring thousands of readers from proceeding beyond page 15 of the General Theory , but it does make sense .
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