at home为什么不加s. in their homes为什么加s
为什么in their opinion中的opinion不加s?
in their house house为什么不加s
in their homes 为什么 不是at their homes
They will study at home on computers .为什么home 不加s呢?
I stay at home on Saturdays 为什么星期六加s
at home不用加the at the baker's为什么要加the
at some point为什么point不加s.
Women lie about their age, men lie about their income为什么不加s.
no one was home.home前为什么不加at
on one ’s way home中home前面为什么不加to
But there’s still “no place like home”.like为什么不加s?
pandas live in China.live为什么不加s?