（how long）（have you）（bought）（the bike）上面四个部分哪个错了

How long have you been 'how long have you (　)your mountain bike?' 'a year'3个字母（）a （） How long have you been like this?-----______ ______ ________(两天了） How long have you（） here?A.beenB.arrivedC.comeD.reached选哪个, How long have you been like this?——Every day since （ ）mouth. how long have you （）a tour guide A been B become C became D were -How long have you been a teacher?-( )about ten years.填介（副）词 How long have you waited by ten o'clock yesterday?（找错误） how long have you been learning english? How long have you been studying? How long have you been in China? 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 you been watching （）have you lived in Binzhou?-For about ten years.A.How soon B.How often C.How long D.How much应选哪个?