since when ,how long 区别

since when ,how long 区别 是不是when.现在完成时.since.how long 现在完成时 .for. 英语短语疑问词有哪些?标下中文比如how long?how long ago?Since when?等 How long is it_____ I _____?A.since…arrivedB.since…has arrivedC.when…arrivedD.as…arrived ---Mark broke his leg when he was playing football.---_____was that?A.since when B.since when ago C.how long ago C. -()have you lived in shanghai?-Since we ()work here.A.When;have found B.How long;found C.When;have found D.How long;have found _____has she been your English teacher?Since she ______ to China.A How long ...comesB When...comesC When...has comeD How long...came ----Tom told me once he had a fall and broke his arm.---- _____was that? A Since when B How long ago C For when D For how long 大家帮忙解答下这道英语选择题应该选什么?-Mark broken his leg when he was playing football.-_____ was that.A.Since when B.Since when ago C.How long D.How long ago 麻烦大家详细分析下 how long is it ___the class ___?A when .. begins B when .. began C since.. had begun D since .. began选择D 是为什么么呢 How long is it ____ the metting___?A.When,began B.since,began C.when,begins D.since,has been begin 不是瞬间动词嘛 不是不能和how long连用的嘛?为什么不选D how long has the bookstore been in business ——2000 A when B after C since D before How long do you think it will be ______ the economy revives?A.after B.since C.before D.when ------____ have you been painting?------Since three years agoA.When B.How long C.How ofen D.How soon应该选什么啊? --- 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 have had a computer since I went there 如果把since 和其后画上线是用when还是how long提问? 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 —— （______ ）have you lived there?Since 1970 A．how soon B.how often C .how long D.when Work ha—— （______ ）have you lived there?Since 1970A．how soon B.how often C .how long D.whenWork hard ,_____you will catch up with others.A.or B.