Fill in the blank with the most appropriate word.
I thought the nurse was looking _____ you.
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.
The correct answer is option B) after as 'look after' is a phrasal verb that tells who is taking care of the listener here.
The options 'to ,'into' and 'of' can not be used here because 'to' is used to indicate or give a direction to something, 'into' is used to show the movement of something/someone , and 'of' is used to show the possession of something by someone.
I thought the nurse was looking after you.