Answer:
9. Did Dana fall in love with Robert? Yes, she did
10. Mary did not buy a new dress for the party
11. Did your teacher help you? Yes,she did
12. Did Anthony plant any trees? No,he didn't
13. Emily did not brush her teeth
14. Did the thief run away? Yes,he did
15. The train did not arrive late
16. Can she speak Spanish? No,she can't
17. Melanie didn't walk to school
18. Sandra did not do the ironing
19. Did it bark loudly?
There is no actual instruction to tell me what to do, but I hope I could help