The tree is . . . . . . . . the house. Which preposition is suitable to fill the blank?

There is a bench . . . . . . . . my house.

She is obsessed . . . . . . . . her project.

The room is filled . . . . . . . . smoke.

The old man was sitting . . . . . . . . the corner of the room.

They are bad people to deal . . . . . . . ., always late in delivery dates.

The parcel was delivered . . . . . . . . hand.

I go to Madurai by . . . . . . . . Vaigai Express.

She will come here . . . . . . . . the evening.