00317 am a2200121   4500001000500000005001700005008004100022020001500063040002700078100002000105245002700125260004300152452520260327110143.0      s1998    xr ---------u-------eng d  a0521436818  aGJHKNbczeerdacGJHKN1 aMurphy, Raymond10aEnglish Grammar in Use  aS.l.bCambridge University Pressc1998