雨后，森林里形成了许多小水洼。

After the rain, many small ___pools formed in the forest.

酒店的游泳池每天早上7点开放。

The hotel's ___pools open at 7 AM every morning.

公司设立了一个资金池用于员工培训。

The company set up a ___pool for employee training funds.

他在小组赛中表现出色，顺利晋级淘汰赛。

He performed well in his ___group and advanced to the knockout stage.