2014新人教版九年级英语unit4 SectionA 2a-2c(12)

“used

to‖的肯定形式，疑问形式和否定形式： — I used to be afraid of the dark. —Did you use to be afraid of the dark? —Yes, I used to be afraid of the dark. —Did he use to be afraid of the dark? —No, he didn’t use to be afraid of the dark. 或 —Used you to be afraid of the dark? -- Yes, I used. / -- No, I usedn’t.

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