( )9.—How long have you___the art club?—About 2 year.A.joinedB.take part in C.taken par inD.been in

How long have you been —__ 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 have you been learning english? How long have you been studying? How long will I have to How long ____you___(have)your car? How long have you been in China? known,how long,have they,each other How long have ;Tom and Mary -------[结婚] How long I have to wait how long have you been dancing today? how long have you studied in this How long have you been there? How long have you live in China How long have you ----(live)here? how long have they 还是用them how long have they 还是用them “How long have you been watching