my tongue was busy searching out the hole where the tooth had been的句子成分?

问题描述:

my tongue was busy searching out the hole where the tooth had been的句子成分?
my tongue(主语) was busy(表语) searching out the hole(?) where the tooth had been(是定语从句修饰hole还是地点状语从句?)

my tongue主语 was 系动词 busy searching out the hole表语
hole先行词
where the tooth had been定语从句,修饰hole