'Which team won the previous match?' said Bill.
-> Bill asked me which team had won the previous match
'Who is playing next week?' he asked.
-> he asked me who was playing the following week
'Who will be umpiring that match?' asked Tom.
-> Tom asked me who that match would be umpiring
'Who has just dropped a Ј10 note?' I asked.
-> I asked me who a j10 note had just dropped