用used to do sth造句5句话,然后变成疑问句、肯定句、否定句.
问题描述：
用used to do sth造句5句话,然后变成疑问句、肯定句、否定句.
答
my mother used to go to work by bus .did your mother use to go to work by bus my mother did not use to go to work by bus .i uesd to like playing games.i did not use to like playing games.did you ues t...