How long ()since I bumped into you at McDonald?选 is it ,was it为何不对?（)is often the case,the girl forgot to bring her book.选as,such为何不对

I can’t say _______ I want to see you again.It’s a year since I last saw you.A.how long B.how答案为什么是C,怎样翻译I can’t say _______ I want to see you again.It’s a year since I last saw you.A.how long B.how often C.how much D.how since when ,how long 区别 --- How long have you been collecting coins?--- ________.A.Since 5 years ago B.Since 5 years C.C.In 5 years D.When I was 5 I cann't say__I want to visit my grandma.It is a long time since we met lastA .how often B.how soon C.how long D.how much 回答下列括号中的( )have you been at this factory?I have been here since 19993.A.When B.How long C.how often D.What time a i don t think it will be you know how to improve youri don t think it will be____you know how to improve your Enjlish studyA long after B long before C long since D far form that 21.I can’t say _____ I want to see you again.It’s two years since I saw you last .A.how long B.how often C.how soon D.how much （理由!理由!）I can't say -----I want to see you again.It's two years since I saw you last time.A.how long B.how often C.how soon D.how much I can't say ____ I want to go back to my hometown.It's quite a few years since I last went back.A.how often B.how long C.how much D.how soon选择并阐述理由 I can't say ____ I want to see you again.It's been a year since I last saw you .选择：A How often B How soon C How long为什么？把上面的c选项改为how much I can't say I miss you.It's a year since I last saw you.A.how many B.how long C.how much D.how soon横线在say后面. I don't know how long it will be ______ I can return to my howntown.A since B before C after D when --___have you been at this school?--Since 1990.A.How long B.How much C.How soon D.How often ___has Linda studied English?since she was one.a.How often b.how long c.how far d.how soon ______is it since you came to this school a,how long b.how often c.how far d.how soon How long is it_____ I _____?A.since…arrivedB.since…has arrivedC.when…arrivedD.as…arrived I can't say Iwant to see you again.It's a year since I last saw you.A·how often B·how long C·how much请解释 英语翻译“how long it has been since i have done something 最好结合情景举个例