That little girl _______ mother is my work colleague, often played by ________ in the playground.A.who — herselfB.which — hersC.whom – hersD.whose – herself

To fill in the blanks in the sentence accurately, we need to analyze the options provided:

1. Understanding the Sentence Structure:

   • The first blank requires a word that relates the little girl to her mother, indicating possession, which is best filled with a possessive form.
   • The second blank refers back to the girl, indicating who plays in the playground, which can be filled with an appropriate pronoun.

2. Evaluating Each Option:

   • A. who — herself: "who" is suitable, but "herself" is not the right pronoun here.
   • B. which — hers: "which" does not fit well here, as it refers to things rather than people.
   • C. whom – hers: "whom" is correctly used for people, but "hers" does not fit in this context.
   • D. whose – herself: "whose" is the correct possessive form for people, and "herself" as a reflexive pronoun is appropriate to refer back to the girl who plays.

3. Choosing the Best Option:

   • Option D makes logical and grammatical sense, completing the sentence coherently.

Final Answer

The correct completion of the sentence is: "That little girl whose mother is my work colleague, often played by herself in the playground." Thus, the answer is D. whose – herself.