问题补充：
单选题He ______ inthenorth,butnowhe______here.A.used to live; is used to the lifeB.use to live; is used to liveC.used to living; is used to livingD.used to live; is used to live
答案：
A解析从句中一个now可知：前半句讲过去习惯，用used to do, 后半句讲现在，用be used
to (doing) sth.
