You can change buenas to simpáticas.
The line: Es el mes de agosto. Nieva y hace mucho frio. Hoy voy a esquiar con mis amigos. Estoy en ___. The best answer should be la Argentina. The best months to ski in Argentina is within July to September though the season runs from June to October. It doesn't snow in Cuba and Puerto Rico. In Colombia, there are only few ski resorts and there are no ski lifts.
Answer: These are the correct answers:
1. por
2. por
3. para
4. para
5. para
6. por
Explanation: Just to elaborate a little on the answer, it can also be added that in this exercise they are asking you to choose the most appropriate preposition. "Por" can be translated as by, among other meanings, and "para" can be translated as for, among other meanings as well. So, for instance, in sentence 6, the speaker is saying: "My cousin was raised BY my parents." And in sentence 3, the speaker is saying "I bought some flowers FOR Ana."