1) They will have lunch when..mother comes.
2 )Ben and Ted will wash up when...they have had their dinner.
3) Bill and Kim will play chess when...they meet.
4) They'll talk to their uncle when..he visits them.
5) Mother will read a book when.her children go to bed.
6) Father will play with the boys when...it is Sunday.
7) Granny will tell the children a tale when..it's time to sleep.