Раскройте скобки, употребив время past simple или past perfect. 1. frederic taylor (to introduce) scientific management in 1881. 2. henry ford already (to introduce) the assembly line by 1915. 3. after the accountant (to present) the necessary information, the head of the department (to begin) to set the business plan 4. what you (to do) before you (to recommend) that method? 5. according to taylor the workers (not need) to think but instead to follow instruction cards.

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