Answer:
1. She chose the yellow hat. Or I have chosen the yellow Hat. = Elle a choisi le chapeau jaune. or J'ai choisi le chapeau jaune. (I did both "She" and "I" because I didn't know which one you wanted - they're two different pronouns, unlike the other questions)
2. You (singular) chose the blue skirt. Or You have chosen the
blue skirt. = Tu as choisi la jupe bleue.
3. I chose the blue sweater. Or I have chosen the blue
sweater = J'ai choisi le pull bleu.
4. Vous avez nourri les
oiseaux. = You fed the
birds. Or You have fed the birds.
5. Tu as nourri le chien. = You fed the dog. Or You have fed the dog.
6. Il a nourri le chat. = He fed the cat. Or He has fed the cat.
7. You (plural) grounded the grandson. = Vous avez puni le petit-fils.
8. You (singular) grounded your daughter. = Tu as puni ta fille.
3. Which of the 3 forms represents past tense in French
1. Je choisis J'ai choisi je vais choisir
2. Tu as grandi tu grandis tu avez grandi
3. Il a puni il as puni. Il est puni <-------------