Question

4. Vamos acasa. (their)a.Sub. Tuc. mi​

Answer 1

Answer:

The answer would be su.

Vamos a su casa.

Tu makes the most sense, and it is referring to the other person, in the conversation. The english translation of "Vamos a su casa." is "Let's go to your house." So su is the best answer

Hope this helps

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Answer 2

Answer:

A. Su

Explanation:

Because Su literally translates to their. Tu means you/your and mi means mine/my.

If it were casas, then you just modify the pronoun to sus.