In recent years many football clubs （have been run）as business to make a profit.,为什么用这个时态?

·In recent years there have been many changes,可否写成In recent years there were many changes, in the recent decades 还是in recent decades?in the recent years还是in recent years? There are still many problems of environmental protection in recent years 翻译成英语 There are still many problems of environmental protection in recent years. In recent years many children are made what they are not interested in.————理由In recent years many children are made （ ） what they are not interested in、 in recent years 前面用什么时态 in recent years 翻译成中文! in recent years为什么没the in recent years同义词 只用一个单词 In recent years many football clubs （have been run）as business to make a profit.,为什么用这个时态? The recent five years have seen many great changes taking place in my hometown.为何不用taken place in recent years还是in the recent years?如果不是那一个,那为什么那一个不行? 近几年是recently years,?还是in recent years? To our joy,there have been so many in science and technology in the recent years.A.discovery B.breakthroughsC.findings D.invention In recent years many football clubs （have been run）as business to make a profit.为什么不能用have run 这里that的作用,表示什么?BANKS have had so many unsuccessful businesses in recent years that it seems odd for Barclays to sell a good one. in recent years加什么时态现在完成时是必须么 in the recent twenty years相当于for加时间段吗