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school rules
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We must/mustn't chew gum.
mustn't
Oops!
Okay!
We must/mustn't fight others.
mustn't
Oops!
Okay!
We must/mustn't respect the teachers.
must
Oops!
Okay!
We must/mustn't share.
must
Oops!
Okay!
We must/mustn't climb on desks.
mustn't
Oops!
Okay!
We must/mustn't drop litter.
mustn't
Oops!
Okay!
We must/mustn't shout in class
mustn't
Oops!
Okay!
We must/mustn't be kind to others
must
Oops!
Okay!
We must must/mustn't be quiet.
must
Oops!
Okay!
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