能帮我改成reported speech吗?

题目

能帮我改成reported speech吗?
'where did you leave you bag,Mrs Wong?' asked the policeman.
'which radio channel is Tim listening to?' asked Judy.
'when does the stationery shop close?' asked Bob.

答案

The policeman asked Mrs Wong where had you left her bag.Judy asked which radio channel Tim was listening to.Bob asked when the stationer shop closes/closed.两个时态都行.一个是关了门后问（过去）,一个是...