Recently,I have done a research about how to improve tha traffic jam.This week,I have got first place in the English exam.In the past few weeks,I have usually been the first people in the class.如果做对话该怎么问Recently,whathaveyou done something special ?This week,what have you done something special ?In the past few weeks,what have you done something special ?这是不是一般现在完成式？第一句例句what have you down recently？要这样的whathaveyou donerecently?what have you done this week ?what have you donein the past few weeks?