孩子们正在食堂开心地吃午饭。

The kids are happily ___eating lunch in the cafeteria.

我们通常在中午12点在公司食堂吃饭。

We usually ___eat at the company cafeteria at 12 noon.

海水的盐分正慢慢侵蚀着岩石表面。

The salt water is slowly ___eating away the surface of the rocks.

她不停的唠叨真让我心烦。

Her nonstop nagging is really ___eating at me.