41.- overfishing - Espazos (1): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDJiJXUwMDFjJXUwMDBkJXUwMDEwJXUwMDE3JXUwMDE1JXUwMDE1JXUwMDE2JXUwMDEwJXUwMDAy

42.- rubbish - Espazos (2): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDM0JXUwMDA1JXUwMDExJXUwMDE3

43.- exhaust fumes - Espazos (3): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDNmJXUwMDA2JXUwMDEyJXUwMDE2JXUwMDE2JXUwMDUzJXUwMDQ0JXUwMDAxJXUwMDQ1JXUwMDQ1JXUwMDE2JXUwMDEwJXUwMDAyJXUwMDExJXUwMDE1

44.-disaster - Espazos (4): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDNjJXUwMDAxJXUwMDE2JXUwMDEyJXUwMDEyJXUwMDA3JXUwMDA2JXUwMDE3

45.- catastrophe - Espazos (5): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDNiJXUwMDAyJXUwMDE1JXUwMDk1JXUwMDkyJXUwMDA3JXUwMDA2JXUwMDFkJXUwMDA5JXUwMDAz

46.- asteroid - Espazos (6): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDM5JXUwMDEyJXUwMDA3JXUwMDExJXUwMDE3JXUwMDFkJXUwMDA2JXUwMDBkJXUwMDAx

47.- fossil fuel - Espazos (7): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDNiJXUwMDBjJXUwMDAyJXUwMDBmJXUwMDE3JXUwMDA2JXUwMDA3JXUwMDFkJXUwMDBiJXUwMDBlJXUwMDA5JXUwMDQ1JXUwMDQ2JXUwMDk1JXUwMDgwJXUwMDFhJXUwMDA1

48.- drought - Espazos (8): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDJiJXUwMDE2JXUwMDA2JXUwMDAy

49.- erosion - Espazos (9): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDNkJXUwMDE3JXUwMDFkJXUwMDFjJXUwMDFhJXUwMDlhJXUwMDlk

50.- tsunami - Espazos (10): catástrofesecagases de escapedesastrecombustible fósiltsunamisobrepescaerosiónasteroidelixo JXUwMDJjJXUwMDA3JXUwMDA2JXUwMDFiJXUwMDBmJXUwMDBjJXUwMDA0

51.- avalanche - Espazos (1): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDM5JXUwMDE3JXUwMDE3JXUwMDBkJXUwMDBkJXUwMDBmJXUwMDBkJXUwMDBiJXUwMDA5

52.- volcano - Espazos (2): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDJlJXUwMDE5JXUwMDAzJXUwMDBmJXUwMDgyJXUwMDhm

53.- to preserve - Espazos (3): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDI4JXUwMDAyJXUwMDE3JXUwMDE2JXUwMDE2JXUwMDE3JXUwMDA0JXUwMDE3JXUwMDEz

54.- earthquake - Espazos (4): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDJjJXUwMDExJXUwMDE3JXUwMDAwJXUwMDE3JXUwMDA4JXUwMDAyJXUwMDFiJXUwMDFi

55.- cloud - Espazos (5): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDM2JXUwMDFiJXUwMDE3JXUwMDA3

56.- heatwave - Espazos (6): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDM3JXUwMDAxJXUwMDBhJXUwMDA1JXUwMDQxJXUwMDQ0JXUwMDAxJXUwMDQ1JXUwMDQzJXUwMDAyJXUwMDBkJXUwMDAzJXUwMDFk

57.- carbon footprint - Espazos (7): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDI4JXUwMDE1JXUwMDAyJXUwMDA2JXUwMDA1JXUwMDA1JXUwMDQxJXUwMDQ0JXUwMDAxJXUwMDQ1JXUwMDQzJXUwMDAyJXUwMDEzJXUwMDEwJXUwMDBkJXUwMDAxJXUwMDAx

58.- overpopulation - Espazos (8): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDJiJXUwMDFjJXUwMDBkJXUwMDEwJXUwMDE3JXUwMDE1JXUwMDFmJXUwMDBkJXUwMDBkJXUwMDBlJXUwMDAyJXUwMDBhJXUwMDlhJXUwMDlk

59.- ice caps - Espazos (9): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDNiJXUwMDAyJXUwMDEyJXUwMDAyJXUwMDA0JXUwMDEwJXUwMDExJXUwMDExJXUwMDE2JXUwMDUzJXUwMDQ0JXUwMDAxJXUwMDQ1JXUwMDU4JXUwMDFkJXUwMDBh

60.- the three R's - Espazos (10): volcános tres erresonda de calorpreservaravalanchanubesobrepoboaciónterremotopegada de carbonocasquetes de xeo JXUwMDM3JXUwMDFjJXUwMDUzJXUwMDU0JXUwMDA2JXUwMDE3JXUwMDE2JXUwMDUzJXUwMDQ1JXUwMDE3JXUwMDAwJXUwMDE3JXUwMDE2

a) When I was a child, I Espazos (1): was having was eat am been swimming eated eaten is swimming ride was is were was riding swimmed was swim riding rode eat are was eating JXUwMDJhJXUwMDFkJXUwMDBiJXUwMDAx a horse with my cousins every Sunday. (to ride)

b) When you rang the bell, I Espazos (2): was having was eat am been swimming eated eaten is swimming ride was is were was riding swimmed was swim riding rode eat are was eating JXUwMDJmJXUwMDE2JXUwMDEy in the shower, (to be)

c) When you rang the bell, I Espazos (3): was having was eat am been swimming eated eaten is swimming ride was is were was riding swimmed was swim riding rode eat are was eating JXUwMDJmJXUwMDE2JXUwMDEyJXUwMDUzJXUwMDQ4JXUwMDA5JXUwMDE3JXUwMDFmJXUwMDA3JXUwMDA5 a shower. (to have)

d) Yesterday, when you arrived, I Espazos (4): was having was eat am been swimming eated eaten is swimming ride was is were was riding swimmed was swim riding rode eat are was eating JXUwMDJmJXUwMDE2JXUwMDEyJXUwMDUzJXUwMDQ1JXUwMDA0JXUwMDE1JXUwMDFkJXUwMDA3JXUwMDA5 the last strawberry. It was delicious! (to eat)

e) The duck Espazos (5): was having was eat am been swimming eated eaten is swimming ride was is were was riding swimmed was swim riding rode eat are was eating JXUwMDMxJXUwMDFhJXUwMDUzJXUwMDUzJXUwMDA0JXUwMDFlJXUwMDA0JXUwMDAwJXUwMDA0JXUwMDA3JXUwMDA5 , look! (to swim)

a) While I was sleeping (past continuous), you opened  Espazos (1): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDUzJXUwMDFhJXUwMDA0JXUwMDFkJXUwMDFjJXUwMDA5JXUwMDRj  the door. 

b) While I was drawing Espazos (2): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDQzJXUwMDBjJXUwMDAxJXUwMDFhJXUwMDFkJXUwMDA3JXUwMDFiJXUwMDFhJXUwMDFhJXUwMDA2JXUwMDVh a snowman, my father said  Espazos (3): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDUzJXUwMDFhJXUwMDA0JXUwMDFkJXUwMDFjJXUwMDA5JXUwMDRj my name.

c) When the cat ate Espazos (4): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDUzJXUwMDFhJXUwMDA0JXUwMDFkJXUwMDFjJXUwMDA5JXUwMDRj the kiwi, we were having  Espazos (5): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDQzJXUwMDBjJXUwMDAxJXUwMDFhJXUwMDFkJXUwMDA3JXUwMDFiJXUwMDFhJXUwMDFhJXUwMDA2JXUwMDVh lunch at a restaurant. 

d) When I saw  Espazos (6): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDUzJXUwMDFhJXUwMDA0JXUwMDFkJXUwMDFjJXUwMDA5JXUwMDRj the lion, he was sleeping  Espazos (7): (past continuous)(past simple) JXUwMDcwJXUwMDU4JXUwMDExJXUwMDEyJXUwMDA3JXUwMDU0JXUwMDQzJXUwMDBjJXUwMDAxJXUwMDFhJXUwMDFkJXUwMDA3JXUwMDFiJXUwMDFhJXUwMDFhJXUwMDA2JXUwMDVh under a tree.