Question

Fill in the blank with a suitable preposition:
It’s supposed to be good _______ the nerves and sleeplessness.
(a)to
(b)at
(c)for
(d)in

Answer 1

Hint: Read the given sentence and try to decipher what it means. Now go through the options, recall what they mean and where they are generally used. Use the hit and trial method to see which of the given options fit the context of the sentence.

Complete answer:
Prepositions are words that are used to show positions, locations, direction, and time. They are usually in front of nouns and gerunds.
Example - In the sentence ‘There is a lamp on the table’, the word ‘on’ describes the location of the lamp. So, it is a preposition. There are many verb + preposition combinations in English, which are easy to learn, like ‘go up’. Prepositions indicate relationships between other words in a sentence. They can be extremely important parts of a sentence, as they can give you important insight into the meaning of the sentence.
For example, in the sentence ‘We saw a movie at the theatre’, we understand where the movie was seen. It clearly conveys that the movie was not seen at any other location. This is an example of a preposition of location. There are many more kinds of prepositions.

Depending on which preposition is used after a verb, the meaning of the sentence can completely change. The preposition used makes a big difference. For example, ‘turn back’ and ‘turn off’ have two completely different meanings, even though the root verb is the same.
In the given sentence, we need a preposition that signifies purpose.
Now, let’s look at the options:
(a)to - The word ‘to’ refers to ‘expressing motion in the direction of (a particular location)’. However, it does not signify purpose. This is not the required answer. So, this is an incorrect option.
(b)at - The word ‘at’ refers to ‘expressing location or arrival in a particular place or position’. However, it does not signify purpose. This is not the required answer. So, this is an incorrect option.
(c)for - The word ‘for’ refers to ‘having the purpose of’. This preposition signifies purpose. This is the required answer. So, this is the correct option.
(d)in - The word ‘in’ refers to ‘expressing the situation of something that is or appears to be enclosed or surrounded by something else'. However, it does not signify purpose. This is not the required answer. So, this is an incorrect option.

Note: The meaning of the sentence is important because it will be easier to understand what is required. Understand the meaning and choose the preposition that makes the most sense. Also, make sure that the sentence remains grammatically correct.