does mary teach in school?NO.she ( )A used to b used to teach_英语解答

does mary teach in school?NO.she ( )
A used to b used to teach

人气：451 ℃　时间：2019-10-30 21:46:45

解答

A 动词不定式的省略形式,后面的动词省略
”她过去曾经是“