【九下英语关于现在完成时和一般过去时J：Haveyouevertakenpartinanenvironmentalproject?K：Yes,Ihave.IhelpwithaClean-UpDaylastyear.Itwasconsideredthebiggestclean-upprojectthiscityhadeverhave,J：Howmanypeopl】

　　九下英语关于现在完成时和一般过去时

　　J：Haveyouevertakenpartinanenvironmentalproject?

　　K：Yes,Ihave.IhelpwithaClean-UpDaylastyear.Itwasconsideredthebiggestclean-upprojectthiscityhadeverhave,

　　J：Howmanypeople___1__(take)part?

　　K：Ithinkmorethan1,000people__2___（come）tohelpout,

　　这两空分别用什么时态?要理由!