选D
do后面跟原型
这边did后加use原型
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___ you ____ play football when you were in middle school
___ you ____ play football when you were in middle school
A,Are ; used to B,Were ; used to C,Did ; used to D,Did ; use to
A,Are ; used to B,Were ; used to C,Did ; used to D,Did ; use to
英语人气：157 ℃时间：2019-10-23 11:46:53
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