I used to be afraid of the dark( )your sister ( )to be afraid of _英语解答

I used to be afraid of the dark
( )your sister ( )to be afraid of dogs?A Did,use B Did,used C Was,used D Is ,used

人气：356 ℃　时间：2020-03-27 21:49:23

解答

A Did,use为什么选A呢，可不可以告诉我理由used to do/be 是过去时态
一般疑问句是用助动词Did 提问的，用了助动词，动词用原形