一、用方框中所给的动词短语的正确形式填空 leave sb alone turn around test out set aside ring up smooth away 1. How many people ___________ while I was out? 2. The model must _______________ before we put it into mass production. 3. ______________, I saw an old friend of mine, whom I haven’t seen for years. 4. She is very upset. ____________ for a few minutes. 5. It’s time for us ______________ our differences and work together for a common purpose. 6. There are still a few problems to be ____________ before we can complete the project.