kate likes PE_ all the other subjects.it's the most interesting subjectA best of B better than选什么为什么
问题描述：
kate likes PE_ all the other subjects.it's the most interesting subject
A best of
B better than
选什么为什么
答
B 是正确的.
句中有other ,说明是拿PE与其它科目相比较,所以用比较级.
句意是：比起其它所有科目,凯特更喜欢体育.它（体育）是最有趣的科目.