is your grandpa still smoked?----no ,It's years s(since) he smoked?讲解一下为什么用since

分类: 作业答案 • 2023-01-17 10:16:11

问题描述：

is your grandpa still smoked?----no ,It's years s(since) he smoked?讲解一下为什么用since
smoking 刚打错了

答

since有是自从,但是意思有“自从不再做……时起”
就是说从他不吸烟起已经有一段时间了.