Direct And Indirect Speech

The question begins with “Pourquoi” (why), which is an interrogative word and is retained in indirect speech.
“Es-tu” (are you) becomes “je suis” (I am) to match the subject shift.
So the indirect speech becomes: Maman me demande pourquoi je suis stressé.

This sentence is already written in indirect speech.
It uses the interrogative structure “ce que” correctly.
The verb “voudrait” (conditional) fits the indirect speech tense structure.
No changes are necessary.

This is a question in direct speech using inversion (“Puis-je”).
To convert into indirect speech, we remove the quotation marks and use “si” to introduce the reported question.
“Puis-je” becomes “il peut” (3rd person singular).
So the correct indirect speech is: s’il peut sortir avec ses amis ce weekend.

The sentence is already in indirect speech.
It reports a question with an interrogative word “où” (where), which is correctly placed.
Tense agreement is respected: the past tense “a acheté” remains valid in reported form.
Thus, no change is required.

This is a command (impératif) in direct speech.
To report an imperative, we use the structure: de + infinitive.
“Prends” (take) becomes “de prendre”
“mes affaires” becomes “ses affaires” because of the change in perspective.
So the final sentence is: Gabriel dit à son ami de prendre ses affaires du club.