Question

--Which sweater is Alice's, David?

--The green one is ________.

1. A.
   theirs
2. B.
   his
3. C.
   hers
4. D.
   mine

Answer 1

C
此题题眼为Which sweater is Alice's，根据这句我们可以判定此处的Alice，应该是个女的，而且后面没有跟名词，所以应用名词性物主代词。物主代词分为形容词性物主代词和名词性物主代词。形容词性物主代词修饰名词，做定语；而名词性物主代词在句中代替名词，相当于形容词性物主代词加名词，在句中做主语、表语或宾语。