The answer is ayer lo compré is C the answer
One major first was that they were able to explore a highly contested region without the aid of instruments.
Answer:
1. Tú cantas.
2. Ellos conversan.
3. Tú y yo cenamos.
4. La profesora enseña.
5. Mis compañeros viajan.
Explanation:
identifying the person of the narrator, and the time in which it is indicated, we can correctly conjugate the verb, and that it has agreement with what is being expressed.
B is the answer. Hope this helps!