when to

when to WHEN YOU COME TO when is turn to when.you.( )to.school? When to hold the when to go when comes to 歌名 when i go to when+doing 还是when+to do sth. Know When to Hold,Know When to Fold. When do you go to when( )you( )(go)to school when he came back to when do you go to When did you go to When I go to sleep 请问when it comes to When it comes to friends