it __ about fifteen years since he __ his hometownA.is;leftB.has been;leaves为什么有since的时候不用完成时

it __ about fifteen years since he __ his hometownA.is;leftB.has been;leaves为什么有since的时候不用完成时 It takes about fifteen minutes by bus.(改为同义句)The _____ _____takes about fifteen minutes It takes about fifteen minutes by bus.(改为同义句） The____ ____takes about fifteen minutes. it takes about fifteen minutes by bus.(改同义句) it takes about fifteen minutes【 】（ride）to school. 同义句 It takes about fifteen minutes on foot.改为 It is about { } { }　　{　　} () is it from your home to the shopping mall?——About fifteen minutes'ride.答句为什么是About fifteen minutes's ride而不是about+公里数 don't __(worry) about it You need't worry about it ,__ __ 英语翻译__ __ ,he knows ____ about it. Its near ZhongShan Library.__ __ __ __History Museum__ __?About two kilomet it's about fifteen minutes by u____ from my home to my school . it takes about fifteen minutes () thereto、to walk、walk to、to walk to does it take him to get to school?--About fifteen minutesAHow often B.How longCHow far I have no idea of it.的同义句I __ __ about it. It is six fifteen是什么意思? Why don`t you talk to her about it 1)__ __ talking to him about it?(2)You __ __ talk to her __ __is it from Qingdao to Gaomi?About 100 kilometres.