Present Perfect教科书上有一种解释如下:3.现在完成时也可以和包括现在在内的时间状语连用.如 this week,this moring,today,this year 等……那么,什么是"包括现在在内的时间状语",那些例子从哪体现出

present perfect present perfect simple and present perfect continuous Present simple,present continuous,present perfect simple,present perfect continuous Present Perfect教科书上有一种解释如下:3.现在完成时也可以和包括现在在内的时间状语连用.如 this week,this moring,today,this year 等……那么,什么是包括现在在内的时间状语,那些例子从哪体现出 present perfect continous是什么 present perfect是什么意思 The present perfect tense present perfect progressive 现在完成进行 和present perfect 有什么区别present perfect 加has/have+past participle 而present perfect progressive has/have+been+verb+ingparticiple 过去分词 英语present perfect simple跟past perfect simple 有什么区别? 请问present simple,the present continuous,the present perfect这三个之间有什么区别么?怎么分别他们 请问present/past perfect tense 跟present/past perf请问present/past perfect tense 跟present/past perfect continuous tense 有何分别?当做时态练习时,如何清楚介定它们.（它们有哪些标示语） 什么是PRESENT PERFECT CONTINUOUS啊? write the sentence in the present perfect 用present perfect tense ,simple past tense , 求 4 个 present perfect progressive 句子 求 4 个 present perfect progressive 句子.. the present perfect tense的中文 present perfect continuous和present perfect simple的区别与用法