1.So I end up standing by myself at recess doing nothing ． What should I do?所以我在课间一个人站着无所事事。我该怎么办？

2.What should I do with this information?知道后我该怎么做

3..What should I do, do you think? About what?你觉得我该干点什么呢？做什么？

4.What should I do first?我该首先做什么？。