——HOw long have they been watching TV ——For 急i!A.one and a half hour B.one and half an hour C.one hour and a half D.one hour and half a 主要是A,C,辅导书说A=C,那为什么答案是C不可以是A?

—have they studied English They have studied English for three years.A:How long B:How soon known,how long,have they,each other how long have they 还是用them how long have they 还是用them —Could you tell us_______?---For more than ten years.A.when have they got married B.how long they have been married?C.when they had been married?D.how long they had got married?选择的原因也说下吧. how long have they been dating和how long have they dated?区别?how long have they dated?也不一定以后他们就不date了啊? How long have they built these highrises?(被动语态)How long _____ these highrises _____ _____ They have long hair? —__ will I have to be on a diet?—A long time.A.How long;B.How far;C.How often;D.How soon How long can they live? How long have you been How long have they ___?A.been married B.got married How long have they _____ the computer?A.bought B.had C.borrowed D.sold I am not sure how long they _.A.have marriedB.have been marriedC.have got marriedD.married为啥? 问题如下（要有解析）1.I asked your mother if she ________ that dress.A.bought B.had boughtC.had buyed D.buy 2.—How long _____?—Three years.A.did they get married B.were they married C.have they got married D.have they been married 3.— how　long　have you been in China?——Since last Wednesday 啥意思 How long have you been like this?——Every day since （ ）mouth. how long have you been —— this school?为什么不用On 用in?