The film has been on since half an hour ago.(对划线部分since half an hour ago提问)
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The film has been on since half an hour ago.(对划线部分since half an hour ago提问)
The film has been on since half an hour ago.(对划线部分since half an hour ago提问)
The film has been on since half an hour ago.(对划线部分since half an hour ago提问)
How long has the film been on?是对的
How long has the film been on?
答案是:How long has the film been on ? 一般剧中有since 时,都用how long 提问,一般是对句子里面的“段时间”提问用的 since要用现在完成时态,后接两种情况: 要注意区别how long, how often, how soon 三者都可以译成“多久”。how long用来提问“多长时间”,对“一段时间的长短”提问时用,与延续性动词连用;how often用来提问某动作或状态发生的频率,对“一段时间内发生了几次活动”(always,usually, often, never或twice a day等表示频度的词或短语)提问时用;how soon用来提问某人要“多快”能做好某事,或某事要“多快”能完成,对“过多少时间(就能……)”(in短语)提问时用,常用于将来时。而how far意思是“多远”,对距离提问时用。 希望你满意O(∩_∩)O~
1 接时间(表示具体的时间点的词)如:
I have learned English scine 2000.自从2000年开始,我就学英语了。
She has not eaten any food since two days ago.自从两天前她就没吃任何食物。
2. 接句子(用瞬间动词)如:
He hasn't seen me since we last met.自从我们上次遇见到现在,他没有见过我。