Direction: Fill in the blanks with suitable position words. 
The bird is sitting _________ the bench.

The correct answer is: On

The prepositions given in the options are 'in' and 'on'. 'The bird is sitting in the bench' would mean that the bird is sitting inside the bench, which is not possible and is wrong. 'The bird is sitting on the bench' would mean that the bird is sitting on top of the bench, which is correct. Hence, the answer is ON.