选词填空 when while as soon as until before after
1 mother always prepare supper（ ）Icome back from school
2 I can go with you ( ) I finish the homework
3 ( ) I do not feel well,I always go to see the doctor
4( ) september comes ,it starts to get cooler
5 ( )it is 12 O'clock ,everone shouts very loudly
6 it's the last day ( )the new school year begins