For several years this group (has been trying) to get the ci

来源：学生作业帮编辑：搜搜做题作业网作业帮分类：英语作业时间：2024/06/17 00:24:47

For several years this group (has been trying) to get the city government to help bicycle riders.为什么括号中用has been trying,而不是has tried?

has been trying现在完成进行时
表示动作发生在过去,一直持续到现在,有可能继续下去
而是has tried 现在完成时
表示动作发生在过去,对现在造成的影响与结果.强调对现在造成的结果与影响
而从文中可以判定应该用现在完成进行时

For several years this group (has been trying) to get the ci For several years this group has tried to get help for bike He has been （） for several years FOR may years,there has been serious unemployment in this ci He__China for several years.A has been to B has come to C ha the machine has been used for several years.It needs repairi The old man ___ in bed for several years.A:was B:has been C: For hundreds Of years,scientists have been trying to answer 求翻译has he not for the last three days been trying to creep u has been on the phone for several hours He has been a_____ for 5 years and now he's been used to the The group company has decided to open up this area for resid