Question

Fill in the blank with a suitable preposition.
I looked _______ my watch to see how long the lecture was.

• A. within
• B. by
• C. on
• D. at

Answer 1

The correct option is D at

The preposition ‘at’ is used to refer to an object of look, plan or action. Since the noun in the sentence is a ‘watch’ which is used to look at the time, option D is correct. The preposition ‘by’ is used to refer to an agent or person who performs the action. 'The watch' is not the agent, therefore, option B is incorrect. On the other hand ‘within’ and ‘on’ are prepositions of place. Since the sentence doesn't refer to a place they are unsuitable here. Therefore option A and C are incorrect.