单项选择题

A．Because they did not eat other animals.
B．Because they were useful for protection.
C．Because they were good hunters.
D．Because they always obeyed their masters.
<上一题 目录 下一题>
热门 试题

填空题
The secret of happiness is not in doing what one likes, ______ (而是喜欢他应做的).
单项选择题
A．For protection against other animals.B．For protection against other dogs.C．Just for fun.D．For the purpose of guarding the house.
A．For protection against other animals.
B．For protection against other dogs.
C．Just for fun.
D．For the purpose of guarding the house.
相关试题