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we may make good use of the ads to compare the prices of goo compare the prices of food we need to know h_____to compare the prices of things in dif we make good use of the book改成被动 第一种good use is made of the I think the task_____on time if we make good use of our time make the good use of the time to do还是doing the prices of news _____(be) good. We have tried to make the best use of the space available.,如 all we'd have to do to make use of sea water in the world is make the fullest use of how to make good use of time how to make good use of Internet