Task 3 Changé the sentences according to the model (ref. Table 3). It is Bob's pen. Model: It is his pen (Bob). - 1. This is her book (Helen). 2. This boy is their son (Nick and Fanny). 3. These are their letters (the economists). 4. Look at his picture (my friend). 5. It's her desk (the secretary). 6. These are her glasses (my grandmother). 7. Her office is modern (Mrs. Bell). 8. His studio is very large (the painter). 9. Her parents are teachers by profession (Kate). 10. This her telephone (the secretary).