Question

英语中，比较级than的后面接主格还是宾格?

Answer 1

接的是宾格。

人称代词的简单用法

主格: I you he she it we you they

宾格: me you him her it us you them 

形容词性物主代词 my your his her its our your their

名词性物主代词 mine yours his hers its ours yours theirs

主格 做主语，动词前 (She ) likes studying.

宾格 做宾语 动词介词后 Listen to (him)

所以形容词性物主代词通常被叫做所有格，修饰名词，不能单独使用 (Her)bag is blue.

名词性物主代词，单独使用 = 所有格+名词 This is (my bag)=This is mine.