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How long have you been How long have you been looking for a job? How long have you________ English?A.been learnt B.learning C.been learning D.been learn How long have you been a teacher How long have you been a teacher I have been a teacher for 1998. 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 been there? “How long have you been watching how long have the greens--.how long have the greens--.A marriedB be married C got married D been married --( )David and Vicky( )married?--For about three years. A How long were;have beenB How long have;have been C How long have;been D How long did;get How long have you ___Tom?A been married to B been married with how long have you___beijing?A gone to B been to C been in D gone in How long have you been swimming?A.have swimming B.have been swimming C.swam D.swimming How long have you been in hongkong?l have been here for a week.have you visited Disneyland? how long have you been up?How long have you___up?A.got B.get C.been D.be这里为什么不选A? how long have you been 用法how long have you been ---work?A at B on C in D to请教一下下,改选什么?为什么?急!