1. Mrs Potter will have bought vegetables and fruit by the time she comes back home (by seven o'clock)
2. Old Mr Potter will have read all the newspapers and magazines by seven o'clock
3. Old Mrs Potter will have finished knitting her grandson's sweater by seven o'clock
4. Uncle Fred will have washed his car by seven o'clock
5. Aunt Polly will have payed a visit to her niece by the time she comes back home (by seven o'clock)
6. John will have done his homework by seven o'clock
7. Barbara will have written her project by seven o'clock
8. Their cousin Rachel will have planted some roses in the garden by the time she comes back home