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   
How many people __________________ while I was out?
The model must ____________________ before we put it into mass production.
__________________, I saw an old friend of mine, whom I haven’t seen for years.
She is very upset. _______________ for a few minutes.
It’s time for us _________________ our differences and work together for a common purpose.
There are still a few problems to be ___________________ before we can complete the project.