造句it has been +时间段+since从句it has been +时间段+since从句

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• 造句it has been +时间段+since从句
• it is 时间段和it has been时间 区别以前老师讲过,当时选择题里就是有一种用着更好,所以一定要某方面有区别的,不然两个的意思侧重点有不同吗?选择题里又冒出来了一个不太一样的,但是总之这个搞不明白很忧愁啊,现在的题目也顺便问一下,I won't forget my teacher because she ______ so kind to me since i came to this school.A.is B.was C.has been问为什么是C?如果回答得的真的很好,我可能会给多点分吧,I really need help!还有那个题目,it is+时间和it has been + 时间的区别?在回答一次吧?我想知道
• 讲解两道英语单选Ever since picasso painting went on exhibit,there__large crowds at the musemevery day.1.is B has been C.have been D are逗号后面的句子在整个句子中作什么成分?还有这个是主谓一直是吧,have been 如果放到句子中表什么意思?2.____in the trafiic accident that she had to be sent to the hospital.A So seriously Rosa was injured B So seriously injured was RosaC So injured seriously was Rosa D So seriously injured Rosa was.这个是考so...that..引导的结果状语从句么?该题涉及哪些知识内容
• How long has it been since this company was established?since this company was established?是表语从句?
• It is\has been+时间段+since+一般过去式=时间段+（）+since+一般过去式
• since 3 years ago.是时间点还是时间段3 years ago.是时间点还是时间段.2.since 1985 是时间点 还是时间段?3.It is +一段时间+ since从句.怎么翻译?自从.已经多少年了》?是这样翻译吗我在网上查的说，since 1985 是具体时间是时间点啊？since的四种用法 1） since +过去一个时间点（如具体的年、月、日期、钟点、1980,last month,half past six）。例如：I have been here since 1989.1989起，我一直在这儿。2） since +一段时间+ ago。例如：I have been here since five months ago.我在这儿，已经有五个月了。
• 用It has been …since …造句并翻译
• I wonder since when it has been like this,为什么since后的那个句子是用完成式-myfoot hurts terribly,doctor.-I wonder since when it has been like this?since后都是加时间点,也就是过去式,可是为什么这里的since后加的句子是完成时呢?我认为since是个介词,所以后面的所有都是做since的宾语从句呀,可是为什么会是完成时呢?
• mother wanted to be a good provider ,a role she has been shouldering since her marriage to fathe...mother wanted to be a good provider ,a role she has been shouldering since her marriage to father .后面那句化是从句吗?如果是怎么没引导词,如果不是他们怎么都是完整句子
• The law .has been passed in our country同位语从句造句
• stay的延续性动词是什么?是has been还是has stayed?
• 有since的主句中,是用延续性动词,还是用瞬间性动词,还是两种都可以?例：The boy has started to play football since he was at the age of three.句中可以用started to play 这种瞬间性的动词吗?