1.El rey que cantaba...
2.El y ella estan...
3.La princessa cantaba..
4. Con quien canta la reina
5. Donde canta la reina
The answer is C) navegar en la red
A means to take a course, B means to visit chat rooms, and D means to be afraid (presuming that "tenet" is a typo and is supposed to be "tener")
1. dio, despertó, vivieron
2. volvieron
3. vivían
4. estaba, oyó, tocaba