11. A depressing story always makes people sad.
12. The girls next to me were making jokes ten minutes ago.
13. They have worked in this company since 2010.
14. Someone taught that dolphin to jump.
15. He has begun a career in politics.
16. Many animals are endangered because of habitat destruction.
17. Fizzy drinks are sold in plastic glasses in some countries.
18. Old clothing was collected for recycling.
19. Your knowledge will be very useful for your future.
20. A security guard protects places against criminals.
AYUDARME HA PASARLAS A NEGATIVA Y INTERROGATIVA PORFA.
Respuestas a la pregunta
Respuesta:
11. Does a depresing story always make people sad?
A depressing story doesn't always make people sad
12. Were the girls next to me making jokes 10 minutes ago?
The girls next to me weren't making jokes 10 minutes ago
13. Have they worked in this company since 2010?
They haven't worked in this company since 2010
14. Did someone teach that dolphin to jump?
Nobody taught that dolphin to jump
15. Has he begun a career in politics?
He hasn't begun a career in politics
16. Are many animals endangered because of habitat destruction?
Many animals aren't endangered because of habitat destruction
17. Are fizzy drinks sold in plastic glasses in some countries?
Fizzy drinks aren't sold in plastic glasses in some countries
18. Was old clothing collected for recycling?
Old clothing wasn't collected for recycling
19. Will your knowledge be very useful for your future?
Your knowledge won't be very useful for your future
20. Does a security guard protect places against criminals?
A security guard doesn't protect places against criminals