Step 1: Understanding the Question:
The task is to frame a 'Wh' question (a question starting with Who, What, Where, When, Why, How) for which the underlined phrase, "to play the sitar," is the answer.
Step 2: Analyzing the Answer:
The underlined part, "to play the sitar," describes the activity or the action that 'he' was learning. This corresponds to the question word 'What'.
Step 3: Framing the Question:
The statement is in the Past Continuous tense ("was learning"). The question should maintain this tense.
- Statement: He was learning to play the sitar.
- Replace the answer ("to play the sitar") with "What".
- Invert the subject ('he') and the auxiliary verb ('was').
- The resulting question is: What was he learning?