UC知道现在完成时问题，拜托了！
来源：百度知道 编辑：UC知道 时间：2024/06/20 18:39:44
1.对“since+从句”提问用how long吗？
例：He has worked at the factory since he came here.
对since he came here.该怎么提问？
2.对“since+时间段+ago”提问用how long吗？
例：I have been here since 2 years ago.
对since 2 years ago. 该怎么提问？
例：He has worked at the factory since he came here.
对since he came here.该怎么提问？
2.对“since+时间段+ago”提问用how long吗？
例：I have been here since 2 years ago.
对since 2 years ago. 该怎么提问？
1 How long has he worked at the factory?
2 How long have you been here?
how long
1.应该是when吧，就这句来说，提问应该是
When he has worked at the factory ?
2.还是一样的啊,since 后面不管是什么,都一样啊!!
你的回答非常正确。since表示自从过去的某个时间点起，到现在，表示的是一段时间，所以要用how long来提问了。
how long 对since+（时间）点 for +（时间）段提问
自从他来和2年前都是时间点
楼上说得对how long 对since+（时间）点 for +（时间）段提问；还有三楼，你会不会英语呀，你应该好好复习一下定语从句了，怎么混淆了，这个初三不是教了吗？
1.how long has he worked at the factory？
2.（是的），how lomg have you been here？