<prompt> Qedela umusho olandelayo: UHalsall wamelela iGreat Britain emidlalweni yama-Olympic ehlobo lika-2008 emjahweni wamamitha ayi-100 ngesimvemvane,  <response>: 50 m freestyle, 100 m freestyle, 4×100 m freestyle, 4×200 m freestyle futhi 4×100 m medley 