Yao’s little brother, Ryo, was making a tower out of blocks. Yao watched as Ryo slowly slid a block into place. Just then, the tower started to sway. Yao gasped! But Ryo put his hand out and steadied it.
Just then, their mother called to Yao from the kitchen. He quickly jumped up and stepped past the tower. He brushed against it by accident. The tower crashed, and the blocks scattered everywhere.