Question

"How do you want to do the activity?", I asked.​

Answer 1

Answer:

I asked how they wanted to do the activity.

Answer 2

I asked him how he wanted to do the activity. -This is the answer.

About conversion into indirect speech:

• The sentence that is given in direct speech must be changed into indirect speech.
• When a sentence is changed into indirect speech, the comma and quotation marks must be removed.
• The given sentence is interrogative. Thus the question mark must be removed in reported speech we must used 'asked' because it is a question.
• The entire sentence is converted into past tense. That is the verbs take the past tense form. Here simple present tense is used. The verb 'do...want' becomes 'wanted'.
• The person within the quotation marks must be changed in reported form accordingly. In the given sentence, we have the noun 'you'. So we can use 'him/her' while changing it into indirect speech.
• As we are changing question form to indirect form of speech, the noun will precede the verb. So 'do you want' changes into 'he wanted'.
• Therefore the answer is: I asked him how he wanted to do the activity.