一到英语题求解:————you use to be free 5 years ago?yes,but now I am used to being busy!A:Did B:Do C:Were D:Are

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一到英语题求解:————you use to be free 5 years ago?yes,but now I am used to being busy!A:Did B:Do C:Were D:Are
一到英语题求解:————you use to be free 5 years ago?yes,but now I am used to being busy!
A:Did B:Do C:Were D:Are

一到英语题求解:————you use to be free 5 years ago?yes,but now I am used to being busy!A:Did B:Do C:Were D:Are
A 按我的理解,used to do,过去常常做某事,疑问句的话,就是did 提前,后面动词变为一般形式.