如果椅子太高，你可以调整它来适应你。

If the chair is too high you can ___adjust it to suit you.

作为老师，你必须调整你的方法来适应不同孩子的需求。

As a teacher you have to ___adjust your methods to suit the needs of different children.

我必须清洁镜头，准备磁带，并调整声音。

I had to clean the lenses, prepare the tapes, and ___adjust the sound.