Preterite indicates a single event ( something that you dosen't do so often )
the imperfect indicates something that you do habitual
Esta bufanda es barata. Aquella bufanda es mas barata...
Hope this helps....!
Answer: 1) ustedes
2) tú
3) usted
4) ustedes
5) usted
6) ustedes
7) ustedes
8) usted
9) tú
Explanation: I took Spanish. Good luck, hope this helps!
The answer is HACIA mucho calor