Question

This is () book.() is on the desk. A.my/his B.his/my C.mine/his

Answer 1

This
is
(my)
book.(His)
is
on
the
desk
选A
my
是形容词性的物主代词后面要有名词
his
既是形容词性又是名词性物主代词,所以其后可以有也可以没有名词。