have done for/since和have been doing for/since区别i have lived in us for 2 months i have been living in us for 2 months i have lived in us since 2 months agoi have been living in us since 2 months ago小弟实在是没财富 只能说声谢谢

have done for/since和have been doing for/since区别i have lived in us for 2 months i have been living in us for 2 months i have lived in us since 2 months agoi have been living in us since 2 months ago小弟实在是没财富 只能说声谢谢 have done for/since和have been doing for/since区别i have lived in us for 2 months i have been living in us for 2 months i have lived in us since 2 months agoi have been living in us since 2 months ago小弟实在没财富 对不起啊, have done……since的一个问题谢谢网上有人说：have done for/since和have been doing for/since的区别如下：前者是完成时,表示动作结束了,后者是完成进行时,动作还在继续.但是我看吸血鬼日记时看到吸 have done……since的一个问题谢谢网上有人说：have done for/since和have been doing for/since的区别如下：前者是完成时,表示动作结束了,后者是完成进行时,动作还在继续.但是我看吸血鬼日记时看到吸 since前用have done 还是have been done My life has changed a lot in the last few years不是说Have done 后面只能有since和for吗?为什么可以加in?have done后面到底不能加什么, have since been 和 have been since may have done和may have done 的区别RTmay have done和might have done you have done for us.have done是什么 what you have done for us.have thanks for what u have done for since和for用法 比较since和for have been done 和 to be done done和have done 用法区别RT since we have done our homework now对吗 What have you done since you returned to China? being done,have been done和having done怎么分辨