What are you doing()vacation
问题描述:
What are you doing()vacation
I‘m staying()home
A for at B on in C for on
答
有个短语是stay at home,因此根据这一点可以选中A
What are you doing()vacation
I‘m staying()home
A for at B on in C for on
有个短语是stay at home,因此根据这一点可以选中A