Hello, I am a Spanish speaker and would like to help you. So, how would we response to these questions? well, the answers are as follows:
1. ¿Quién habla contigo? (Who is talking to you?)
There are many ways we can answer this question. One of them is as follows:
Mi hermano está hablando conmigo (My brother is talking to me)
or:
Mi hermano habla conmigo (My brother talks to me)
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2. ¿Cuándo estudias con ella?? (when do you study with her?)
This question can be answered as follows:
Yo estudio con ella los lunes (I study with her every Monday)
This sentence is given in the present tens. So, studying with her is an habitual action or routine
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3. ¿Qué escuchas con ellos? (¿What do you listen to with them?)
One way to answer this question is like this:
Con ellos escucho música clásica (I listen to classical music with them)
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4. ¿Dónde practicas el español conmigo? (Where do you practice Spanish with me?)
The answer might be:
Yo practico el español contigo en tu casa (I practice Spanish with you at your home)
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5. ¿Qué miras con nosotros? (What do you watch with us?)
The answer would be:
Yo miro el paisaje con ustedes (I look at the landscape with you)
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All these answers may vary depending on the context of the conversation. The answers I gave you are simply examples of the structure the sentences can take place when asking those questions.
