Question

Fill in the blank with the most suitable option
“Where were you at 2:00?”
“_____ the beach.”
a) in
b) on
c) of
d) to

Answer 1

Hint: A preposition shows us the position of any object in a given sentence. Thus, prepositions like on, at, etc. tell us where the object is. The kite landed on the roof. So the kite was on the roof. The water was poured into the bucket. She was at the market.

Complete answer:
When the person is asked where he was at 2 PM, he has to say that he was on the beach. This is because the beach is a flat surface and he was on it. Thus the correct option is option b. Let us see why the other options are incorrect.
Option a is wrong because being in the beach means he was inside the sand of the beach which is incorrect. Nobody can be in a beach.
Option c is wrong because one cannot be “of the beach”. A dress can be made of cotton, a person can be full of anger, a glass can be full of water. “Of” shows the composition of an object.
Option d is wrong because “to” shows motion. Where are you going? I am going to the beach. But in the given sentence, the person was already at the beach. Thus, the correct option is option b.

Note:
The more correct answer is being “at” the beach. However, since it is not one of the given options, we have to eliminate improbable options to reach the most probable one. Use the prepositions in sentences of your own and then apply it to the given sentence.