Раскройте скобки и поставьте в правильной форме it is a story of an inventor whose creativity and persistence (1) (result) in a very useful product.what (2) (be) the famous invention? it is liquid paper, the white liquid that (3) (cover) up the mistakes you (4) .. (make) when writ- ing or
typing.it ( (invent) by bette nesmith graham, a secretary in dallas, texas, in the early 1950s at the time, she (6) (be) a twenty-seven-year-old sin- gle mother ofone son, struggling to make ends meet and working as a secretary to the chairman of a big dallas bank.when she () to work with her first
electric typewriter, she ( (find) that the type marks she (9) (type) onto the paper (10) .. (not, erase) as cleanly as those from manual typewriters ​

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