1. Debemos
2. serán
3. devolverá
4. iré
5. gustaría
6.encantara
7. necesitan or necesitarán
8. puedo
In the centre of a black hole is a gravitationalsingularity<span>, a one-dimensional point which contains a huge mass in an infinitely small space, where density and gravity become infinite and space-time curves infinitely, and where the laws of physics as we know them cease to operate.</span>
B) delante de it does not make sense
C. is the answer :) hoy en la clase de ciencias sociales vamos a aprender sobre algunos civilizaciones pre- colombinas
english: today in social science class we are going to learn about some pre-Columbian civilization.
hope this helped