People in cities (must/should) practice recycling more in order to bring less trash to landfills!
should
Oops!
Check
Okay!
Check
15
People (must/don't have to/should) volunteer for cleanups in their community, but they are very important and they should give it a chance!
don't have to
Oops!
Check
Okay!
Check
15
We (must/shouldn't/mustn't) be careful when using plastic bottles and bags - reusing them is the best way to help our surface water sources!
must
Oops!
Check
Okay!
Check
15
We (mustn't/don't have to) waste water, because water availability is a really big problem.
mustn't
Oops!
Check
Okay!
Check
15
We (don't have to/has to/must) be careful with food waste, because it can produce greenhouse gases, and because food scarcity is very high in many countries.
must
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Check
Okay!
Check
seesaw
Swap points!
Oops!
gold
Win 50 points!
Okay!
gift
Win 20 points!
Okay!
banana
Go to last place!
Oops!
15
The population (must/should) fight governments who support the idea of deforestation!
must
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Check
Okay!
Check
heart
Other team wins 25 points!
Oops!
star
Double points!
Okay!
gift
Win 15 points!
Okay!
banana
Go to last place!
Oops!
15
According to specialists, car engines pollute the air with carbon dioxide, so we (should/must/has to) try to use other means of transportation, such as bikes.
should
Oops!
Check
Okay!
Check
15
We (shouldn't/should/must) encourage more people to plant trees in their communities!