Identify the part which contains an error.
The little girl (A) can swim (B) comfortably, (C) isn’t it? (D)

Correct option is D

Option (d) contains an error.
• The statement uses modal “can”, so the tag must also use “can”.
• The subject is “the little girl” = “she”, so the tag subject should be “she”.
• Positive statement → negative tag.
Correct tag: “can’t she?”
Correct sentence: The little girl can swim comfortably, can’t she?
Grammatical Rule Used (English):
• Tag must repeat the auxiliary/modal of the main clause.
• Positive statement → negative tag; negative statement → positive tag.
Grammatical Rule Used (Hindi):
• Question tag में main sentence का वही auxiliary/modal आता है।
• Positive sentence के साथ negative tag आता है।
• “the little girl” के लिए pronoun “she” आएगा।