问题
选择题
He used to go out for a walk after supper, ? [ ]
A.usedn’t he
B.did he
C.usedn’t to he
D.used he
答案
答案：A
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He used to go out for a walk after supper, ? [ ]
A.usedn’t he
B.did he
C.usedn’t to he
D.used he
答案：A