The boy went up and down the stairs three at a time.three at a time划线,对划线部分提问
问题描述:
The boy went up and down the stairs three at a time.three at a time划线,对划线部分提问
答
how often did the boy went up and down the stairs?
PS:我是来打酱油的。。。
答
How did the boy go up and down the stairs?
答
How did the boy go up and down the stairs?
答
How many did the boy go up and down the stairs ?