What should we do to protect the air and water?
We should use public transport.
What should we do to protect the air and water?
We shouldn't burn rubbish.
We shouldn't walk or cycle.
TRUE
FALSE
What should we do to protect the air and water?
We shouldn't send dirty smoke into the air.
We mustn't send dirty smoke into the air.
We must send dirty smoke into the air.
We should send dirty smoke into the air.
We mustn't pour dirty water into rivers and lakes.
FALSE
TRUE
What should we do to protect the air and water?
We should plant trees.
We shouldn't plant more trees.
TRUE
FALSE
We should drive cars.
FALSE
TRUE
What should we do to protect the air and water?
We should throw rubbish into rivers and lakes.
We mustn't throw rubbish into rivers and lakes.
We shouldn't throw rubbish into rivers and lakes.
We must throw rubbish into rivers and lakes.
What should we do to protect the air and water?
We shouldn't waste water.