Answer:
Hmmm, I'll try to help you bud :3
They haven't contacted the local doctor yet, because he is getting better, that one is correct, because it's a term for not yet because the boy has been feeling better :3
He would've liked to help with the vaccinations, because it is past sense and has is present or future sense :3 //correct one but opposite is right//
Shall we go to the park for a walk? It's this one because it's questioning you instead of does because does in a sentence is "Does people like chocolate robots?" so it's shall :3 //correct one but opposite is right//
Step-by-step explanation:
:3