1. What is your favorite animal?
My favorite animal is fox. = My favorite animal is a fox.
2. What pet do you want to have?
I want to have a fox as a pet.

Teacher's Comment:

Great job answering in complete sentences, Diana! 😊 You clearly expressed your favorite animal and the pet you want. Just a small note—you may use "a fox" instead of just "fox" to make the sentence more natural. Keep up the good work!