小狗的尾巴摇来摇去。

The puppy's tail is ___wagging.

小猫开心地摇着尾巴向我跑来。

The kitten came running toward me with its tail ___wagging happily.

老师摇着手指警告我们不要在课堂上说话。

The teacher was ___wagging her finger to warn us not to talk in class.