（ ） office is much smaller than （ ）.
（A）Ours; yours
（B）Our; yours
（C）Theirs; our
（D）Your; their
The boy promised （ ） mother never to lie to （ ） again.
（A）his; him
（B）her; her
（C）her; him
（D）his; her
“Help （ ） to some meat.” She said to me.
（A）themselves
（B）ourselves
（C）yourself
（D）himself
