Substitute the highlighted words with the best option to improve the sentence.
"As soon as he arrived home he knew that there was some wrong."

Correct option is C

The correct substitution of the highlighted words is "there was something wrong."
Explanation:
• The original sentence uses "some wrong", which is grammatically incorrect. The correct idiomatic expression is "something wrong", which refers to an unspecified issue or problem.
• “There was something wrong” maintains the past tense of the sentence and uses the correct structure to express suspicion or realization.
Grammatical Rule Used:
• Use of “something” as an indefinite pronoun + adjective (“wrong”) to describe an undefined issue.
• Use of "there was" is standard for indicating the existence of something in the past.
Grammatical Rule in Hindi:
• “Something wrong” का प्रयोग तब किया जाता है जब कोई अज्ञात समस्या या गलती हो। “There was” से तात्पर्य है कि वह चीज़ (समस्या) वहाँ थी।
Example: As soon as I entered the room, I felt there was something wrong.
Meanings of the other options:
· (a) there's something wrong there – Incorrect tense (“there's” = there is); doesn’t match past tense “arrived.”
· (b) it was something wrong – Incorrect structure; “it was wrong” is acceptable, but “it was something wrong” is ungrammatical.
· (d) there was some wrong – Incorrect collocation; “some wrong” is not idiomatic English.