I practise the piano whenever I can.是状语从句吗?

题目

I practise the piano whenever I can.是状语从句吗?
whenever还是连接副词吗,连接副词适用范围呢?且从句修饰“practise”吗?
若“When it rains,l go to school by bus”句中从句修饰动词“go”?

答案