Fill in the blank with the most suitable word.

At that time, I only knew that I adored the way he laughed for no ______.

The correct answer is 'Option 3' i.e. 'Reason'.

Key Points

• The most suitable word to fill in the blank is "reason".
• The reason why this answer is correct is that the phrase "laughed for no reason" is a common English expression that means someone is laughing without any obvious cause or stimulus.
• It's typically used to describe a spontaneous or uncontrollable expression of joy or amusement.

Therefore, the correct sentence is: At that time, I only knew that I adored the way he laughed for no reason.

Additional Information

• Let's briefly examine the other options:
  • "Just" - This word doesn't fit the context of the sentence. "Just" is an adverb that means 'very recently' or 'exactly', and it doesn't make sense to laugh for no 'just'.
  • "Disbelief" - This word also doesn't fit the context. "Disbelief" is a noun that means a refusal or inability to accept that something is true or real, and it doesn't make sense to laugh for no 'disbelief'.
  • "Account" - This option doesn't fit the context either. In the given context, 'account' would imply a record or report of financial income and expenditure, which doesn't correlate with the act of laughing. It would not make sense to laugh for no 'account'.