Sagot :
Bonsoir!
Réponse:
a) We have to protect our planet.
b) We could change things, it's not difficult.
c) You mustn't throw your masks in the streets.
d) They can do complicated things.
e) We must stop using plastic bags.
Explications:
Obligation:
must
have to
Autorisation/ absence d'obligation:
can
Interdiction:
must not (mustn't)
can't
Possibilité:
could
might
En espérant avoir aidé :)