The house is comfortable to live in.中的不定式是做状语吗?如果是,是属于什么状语?还有：these apples are not good to eat.the question is dificult to answer.the water is not good to drink.它们中的动词不定式做什么成分,

Question

The house is comfortable to live in.中的不定式是做状语吗?如果是,是属于什么状语?
还有：these apples are not good to eat.
the question is dificult to answer.
the water is not good to drink.
它们中的动词不定式做什么成分,是做状语吗?如果是,是属于什么状语?
1）there are more than 30 nature reserves to protect pandas.中的to 不定式做什么成分？
2) waiters bring tea to the customers.中的to 做什么成分？

Answer 1

to live in 状语,补足说明Comfortable
to eat,to answer,to drinK 都是修饰形容词的状语,都是补足状语.