Британцы, помогите, пожалуйста с: 3 и 4

3. 1.it's, there; 2. it, there; 3.there, it; 4. it; 5.there; 6.it; 7.there; 8.there, there; 9.there.
4. 1.Are there any forks on the table? 2.Is there any fruit in the basket? 3.Is there any clean paper on the desk? 4.Is there any cheese on the plate? 5.Are there any people in the hall? 6.Is there a key in the pocket? 7.Is there any noise in the classroom? 8.Is anybody at home? 9. Are the sandwiches in her bag? 10. Is there a garden in front of the house? 11. Are there any pieces of cake on the plate? 12. Is there a teacher in the classroom?