Tell me what the preposition phrase is on 1 through 8 and tell me if i'm right where i put the p and the o, s

1. down the sidewalk | to the hospital 
2. at 11 P.M. | until 7 P.M.
3. in a hospital
4. After doctors and nurses | for administrators, dietitians, and lab workers
5. of caring professionals (Object of preposition would also be dietitians and lab workers.)
6. in the gift shop | as a volunteer 
7. for the children | with serious illnesses
8. with flashing lights | onto the scene

The picture is gray. Why is it gray? Is this happening to anyone else?

Where everybody else money goes to the government like it should

The answer would be d.hope this !