the smiiths were having supper when i went to see them 对划线部分提问

问题描述:

the smiiths were having supper when i went to see them 对划线部分提问
今晚之前回答,给财富!

Who were having supper when I went to see them?(划线部分为 the Smiths )
When were the Smiths having supper (划线部分为 when i went to see them)