my mother used to take a walk after dinner.(对划线句子提问）take a walk是画线的____ ____your mother ____ ____ ____ after dinner.
问题描述：
my mother used to take a walk after dinner.(对划线句子提问）take a walk是画线的
____ ____your mother ____ ____ ____ after dinner.
答
What does used to do
答
What does used to do
答
What did,use to do
答
(What) (did) your mother (use) (to) (do) after dinner?