for some time now, Chinese people .under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.A had been improving B have been improving C were improving D improvedthe answer i

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for some time now, Chinese people .under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.A had been improving B have been improving C were improving D improvedthe answer i
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for some time now, Chinese people .under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.A had been improving B have been improving C were improving D improvedthe answer i
for some time now, Chinese people .under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.
A had been improving B have been improving C were improving D improved
the answer is B,翻译下和解释

for some time now, Chinese people .under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.A had been improving B have been improving C were improving D improvedthe answer i
For some time now, Chinese people, under the leadership of CPC,____the contents of the scientific development theory in the course of practicing socialism in China.
A had been improving B have been improving C were improving D improved
答案为B.
解释：介词 for + 时间,可以表示（做某事）持续了多少时间,常用在现在完成时的句子中做时间状语.本句中的时态是现在完成进行时（由“have /has been + 现在分词”构成）,其用法与现在完成时基本相同,不过更加强调动作的持续和进行.再举一例：She has been talking for 3 hours. （她一刻没停地说了三个小时了.）
翻译：一段时间以来,在中国共产党的领导下,中国人民在实践中国特色社会主义的过程中不断丰富完善科学发展观的内容.

在中国社会主义实践的过程中，在中国共产党领导下的中国人民历经时日，一直致力于完善科学发展观的内容。
因为前面用的是for some time now 到现在为止有一段时日，所以后面要跟现在完成时，ACD的时态都不对。B用的是现在完成进行时，表示这一完善过程已经进行了一段时间，并且还在进行中。
不明白的再问哟，望及时采纳，多谢！...

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在中国社会主义实践的过程中，在中国共产党领导下的中国人民历经时日，一直致力于完善科学发展观的内容。
因为前面用的是for some time now 到现在为止有一段时日，所以后面要跟现在完成时，ACD的时态都不对。B用的是现在完成进行时，表示这一完善过程已经进行了一段时间，并且还在进行中。
不明白的再问哟，望及时采纳，多谢！

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A.不用过去时
B 已经 并且还在
C "for some time now" 要用现在完成时的
D 不对

for some time now是什么意思? for some time now 和 for some time区别 I haven't heard from you for quite some time now.为什么后面要加个now呢? for some time some now,save some for later. may i take yopu some time now? Mary has learned English for ------- A.sometime B.some time C.some times快 can you please spend_explaining it _us?A sometimes to B some time to C some times for Dsometime for It's time （）some water.A.to B.for have C.for D.haveIt's time （）some water.A.toB.for haveC.forD.have lt's time to go back _____school now.A.for B.on C.after D.to It is time ____class.Iet is begin now.A.of B.in C.for D.to It's time for us ____lunch now for time deing同义词 A.all the time B.sometimes C.at present D.now and thendad的比较级 Now,___,she is living with her friendsin a small flatA.for the time being B.all the time C.for all long time D.at times for the time being 等于啥?A.from time to time B.all the time C.at present D.now ahd then At times,for a time,for some time,at a time,for the time wait some time or wait for some time some time 指具体时间 For some time now,world leaders _______ out the necessity for agreement on arms reduction.A.had been pointing B.have been pointingC.were pointing D.pointed