This is a great and interesting powerpoint presentation which is good for making students practice how to make imperative sentences.
Rules are like this:
Students who guess the correct answer gets control of the mystery box which may contain good or bad things. Before opening the box, the team should decide if they want to have it or give it to another team of their choosing.
Questions are about imperative sentences, but you can also change questions and answers.
Enjoy and have fun! :)