句中有Over the past ten years 应用什么时态?

句中有Over the past ten years 应用什么时态? over the past ten years over the past fews years与什么时态连用? over the past few years 用什么时态 over the past ten years是什么意思 Over the past ten years ,over这里是介词吗 in last ten years 和in the past ten years有什么区别 分别用什么时态? they --all over the country in the past ten years Many changes_____(take)place over the past ten years/ 填什么? 英语翻译Increasingly,over the past ten years,people – especially over the past ten years能加过去完成时吗? in the past years用什么时态