May I open the window?
The student work in small groups and try to make as many questions as they can. Each question MUST be 4 cards long.
Give them a time limit and the group with the most questions is the winner.
You can ask for volunteers to ask a question and if it is ok the other groups gather up the cards for that question and they get a point.
Walking around and visually marking them yourself is no fun and takes up WAY too much time.
You may get combinations that you weren’t expecting, but if the grammar is ok they get a point.