Question

--- Is David ________ classmate or ________?

--- He is my classmate.

1. A.
   our; their
2. B.
   your; theirs
3. C.
   her; they
4. D.
   his; them

Answer 1

B
第一空后有名词classmate，故应用形容词性物主代词；第二空后没有被修饰的名词，故应用名词性物主代词。