题目内容：

Candy used to take a bus to school.(改为一般疑问句） _____Candy ______ ______take a bus to school?
My father used to drink tea after meals.(改为否定句）
My father ______ _______ _______ drink tea after meals.

优质解答

Candy used to take a bus to school.(改为一般疑问句）
( Did ) Candy(use to ) take a bus to school?
My father used to drink tea after meals.(改为否定句）
My father ( didn't use to ) drink tea after meals.
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