The users may not want to spend the money, or invest the time, to achieve ___. (perfect)
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We gave a party to celebrate the successful ___ of our tasks.(accomplish)
Her ___ work paid off when she was offerd the job of manager. (persist)
Officials who have too many things at their ____ will be easily corrupted. (dispose)
The drug industry says its products are safe and ___ for children. (effect)