l used to smoke.(改否定句) l ---- ----to smoke.

问题描述:

l used to smoke.(改否定句) l ____ ____to smoke.
l used to smoke.(改否定句)
l ____ ____to smoke.
1个回答 分类: 英语 2014-11-11

问题解答:

我来补答
used not
used to do sth.的否定形式是used not to do sth.
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