1. I am writing a book.
By this time next month, I the book.
2. Maria is preparing a report.
By this time tomorrow, Maria the report.
3. Martha is learning German.
By this time next year, Martha German.
4. They are inviting all their friends.
By this time tomorrow, they all their friends.
5. We are bringing our stuff to our new apartment.
By this time tomorrow, we all our stuff to our new apartment.
6. I am fixing my computer.
By this time next week, I my computer.
7. My mother is making dinner.
By the time the guests arrive, my mother dinner.
8. Peter is reading a magazine.
By the time his flight lands, Peter the magazine.
9. My sister and I are painting our apartment.
By this time tomorrow, my sister and I our apartment.
10. John is cleaning the house.
By the time his parents arrive, John the house.