This is a warm up speaking activity that I used to help my students review the grammar of page 91. Simple enough it is called sonic because each student will say a correct a sentence as we go up and down every row. I also use a timer on my phone to keep track of their time and write it on the board after every round. My students got pretty excited when they got faster and of course not excited when they were slower. Overall a great warm up activity that I hope you and your students enjoy as well! ^_^
*Also my name is on the rules slides (Both in English and Japanese) so you will need to edit that out.