This activity could be designed for one- to one class, if using for groups, you need to change its rule. Here is the rule for one-to-one class.One asks and one answers in order to complete the blank. Two players should be back to back to listen, answer and write down the information for your paper. Then, to sum up the questions, teacher can ask students to rearrange the questions following a time rank. This activity can apply for group of student or teaching one to one. I hope it’s helpful.