What are the 3 R´s?
Reuse, Recycle, Reduce
During the quarantine, the streets were ________, there was nobody outside!
deserted
_______ the lights when you leave the room!
turn off
We _______ be at school by nine o´clock
need to
shouldn´t
needn´t
ought not
You _______ walk on the grass
musn´t
wouldn´t
couldn´t
shouldn´t
The river ____________ be polluted, but now it is filled with oil and trash!
didn´t use to
What does polluted mean?
contaminated with harmful or poisonous substances.
You mustn´t _______ up the bath to the top, it wastes water!
fill
You _______ turn off the lights to save energy!
needn´t
need to
shouldn´t
ought to
Don´t walk on that bridge! It´s too _______________
dangerous
Gran Via is very __________, there are too many people!
crowded
You can save water by using the bucket instead of the ___________
hosepipe
What´s for dinner? Last night´s ________ are in the fridge.
leftovers