游泳教练教我们如何游得更快。

The swimming ___coach teaches us how to swim faster.

这位教练非常受欢迎，因为他总是鼓励我们。

This ___coach is very popular because he always encourages us.

我们需要一位新教练来帮助我们的排球队。

We need a new ___coach to help our volleyball team.