since引导的时间状语何时用现在完成时,现在完成进行时My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot汗。。。答案选D，用的现在完成

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since引导的时间状语何时用现在完成时,现在完成进行时My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot汗。。。答案选D，用的现在完成

since引导的时间状语何时用现在完成时,现在完成进行时My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot汗。。。答案选D，用的现在完成
since引导的时间状语何时用现在完成时,现在完成进行时
My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot
汗。。。答案选D，用的现在完成时

since引导的时间状语何时用现在完成时,现在完成进行时My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot汗。。。答案选D，用的现在完成
Sorry,for my misunderstanding and misleading advice.
I thought B says " been improving a lot." in the Perfect continous tense.But it isn't.
In this case,my judgement should be changed like this:
1.Both B & D are correct.
2.In terms of the best choice,it should be D.
Because in most cases,we don't use the passive voice when we say,sth gets better = improve.
sth + be improved,the passive voice,is also possible,when you especially emphasizes the passive action,which sound a little bit unnatural.

D 强调结果，英语自八月后现在已经有所提高
现在完成时和现在完成进行时区别在于：现在完成进行时强调的是动作的过程，而现在完成时强调的动作的结果和影响。
I have been writing letters the whole morning and I have written five now.
但要注意对于有些含有持续意义的动词来说，现在完成时和现在完成进行时可以互换...

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D 强调结果，英语自八月后现在已经有所提高
现在完成时和现在完成进行时区别在于：现在完成进行时强调的是动作的过程，而现在完成时强调的动作的结果和影响。
I have been writing letters the whole morning and I have written five now.
但要注意对于有些含有持续意义的动词来说，现在完成时和现在完成进行时可以互换，所表达的含义基本没有区别。
I have lived/been living here for five years.

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有since这个现在完成时的标志词自然选D，且B为被动语态，不适用

since 时间状语从句since引导的时间状语从句用什么时态啊?怎么有的时候用一般过去时有的时候用现在完成时？到底怎么分呢？ 现在完成时有for和since引导的时间状语,都要用延续性动词? since引导的时间状语从句主句用什么 for和since引导的时间状语 since引导的时间状语何时用现在完成时,现在完成进行时My spoken English has since I came to this school in August. A.raised a lot B.been improved a lot C. raised a lot of D.improved a lot汗。。。答案选D，用的现在完成 由when引导的时间状语从句何时用过去进行时?何时用一般过去时? how long引导的问句一定要用for + 一段时间、since + 时间点或since引导的时间状语从句来答吗? since引导的时间状语从句为什么出现在一般现在时里而不是现在完成时?我在这个句子里发现的：It's 20 years since he joined the party.既然有since了,前边为什么用It's呢? since引导一个时间状语从句时,从句何时用一般过去式,何时用现在完成时?例如：——Have you known Dr.Jackson for a long time?------Yes,since he jioned the Chinese Society.since后的句子为什么是一般过去式,而不 since引导一个时间状语从句时,时态since引导一个时间状语从句时,从句何时用一般过去式,何时用现在完成时?例如：——Have you known Dr.Jackson for a long time?------Yes,since he jioned the Chinese Society.since when引导的时间状语从句 ,主句用现在完成时,从句用什么 如何理解since引导的时间状语从句 现在完成时的时间状语 现在完成时的时间状语 since引导的时间状语从句主句用延续性还是瞬间性动词 as like 用法区别as like它们当介词都表示像,那么如何区分?现在完成时中时间状语,有时候用before,还有ago,just,then ,since后面根的状语有哪几种类型?怎样转换since 和for 引导的状语 如何判断现在完 I will come whenever you like.这个句子中whenever 引导的是不是时间状语从句?如果是,请举几个whenever引导让步状语从句的例子怎么样区分whenever何时引导时间状语，何时引导让步状语 时间状语从句小问题!时间状语从句（when引导的）中,主句是现在完成时或现在完成进行时,从句都用一般过去时吗?