Choose the suitable adverb from the options given below to fill in th…

The correct answer is Option (3) → only

An adverb is a word that tells how, when, where or how much something happens. It can also describe an adjective or another adverb, for example she sings sweetly, very hot.

Complete sentence: We can succeed only by hard work.

Option	What it tells	Example
(1) almost	nearly. "Succeed almost by hard work" makes no sense.	It is almost time for lunch.
(2) enough	Enough means to the required degree and follows an adjective or adverb. It cannot stand before "by hard work".	He is tall enough to reach the shelf.
(3) only (answer)	Only means and by no other means. Placed before the phrase it limits, it shows that hard work is the one way to success: "We can succeed only by hard work."	The museum is open only on weekends.
(4) never	at no time. "We can succeed never by hard work" is ungrammatical and reverses the sense.	She never forgets a face.