Fill in the blanks with the most appropriate words.
A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Option D)to/ on is correct as to and on indicate a direction and an instrument respectively. The other options are wrong as the first blank ca not take on (irrelevant) and with and on indicate inclusion and a surface respectively. These uses don't fit in the given question. The correct answer is D)to/ on.