Answer:
1) Ella está bajando la montaña.
2)Ellos están buceando.
3) Yo estoy en carreras.
4) Ella está en la playa.
5) Ella está compitiendo.
6) Ellos están jugando
7) Nosotros estamos en la pista de patinaje.
Explanation:
Answer:
The right answer is, D. Yo estoy en la clase de español.
Explanation:
Because the sentence that is written correctly with the proper use of the conjugation of the verb with the subject and the body of the sentence is D.
Answer: Yo soy optimista
I am optimistic
Explanation: The subject in this sentence is "Yo", that is a first-person in the singular, so the verb must be conjugated in this form. Yo soy.

Answer:
1. Natasha va a la clase temprano.
2. Yo tengo hambre.
3. Tú no tienes razón.
4. Ustedes van a la iglesia.
5. Vosotras vais a la playa durante el verano.
6. Melanie y yo tenemos 16 años.
Explanation:
We must conjugate verbs in the present tense, that is, actions that are performed or said in real time. therefore, we must identify the person, number and gender in each sentence to conjugate the verbs in this way logically and have coherence with what you want to express.