Could you tell me who I should ask for advice?

---> Could you tell me (a)   for advice?

She wondered what she should write in the final essay.

---> She wondered (a)   in the final essay.

I have no idea who I should contact in case of emergency.

---> I have no idea (a)   in case of emergency.

They can’t decide when they leave for America.

---> They can't decide (a)   for American.

I’m not sure what I should cook for my son’s birthday party.

---> I'm not sure (a)   for my son's birthday party.

Could you tell me where I should put my umbrella?

---> Could you tell me (a)   my umbrella

He asked himself what he should send her as a present.

---> He asked himself (a)   her as a present.

I have no idea when I should leave for Japan.

---> I have no idea (a)   for Japan.

She wondered how she should resolve the conflict.

---> She wondered (a)   the conflict.