In 1902, he took a job in the Swiss patent office in Bern. __________ work _______ not very (demand) ___________, so he had plenty of time (develop) ____________ his theories, __________ were later to change science _______ ever.
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In 1902, he took a job in the Swiss patent office in Bern. ___The___ work _was_ not very (demand) __demanding__, so he had plenty of time (develop) __to develop__ his theories, _____that_____ were later to change science ___for___ ever.
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