Answer:
Your sister or cousin
Ta sœur ou ta cousine
Explanation:
Your grandma‘s granddaughter is either your sister or your cousin
Hi,
Promène-toi dans les parcs pour te divertir.
Hi,
Je devais faire mes devoirs hier, mais je ne les ais pas faits.
Bonjour
<em>If you meant complete with the correct article, it's DES, indefinite article plural</em>
Il va acheter des éclairs.
<em>If you really meant a correct possible adjective, you still have to add an indefinite plural articles which is "DES" which becomes "DE" , partitive article</em>
Il va acheter de bons éclairs.
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hope this helps ☺☺☺