A-You keep this door locked. MustMustn'tb-You run.MustMustn't...

A-You keep this door locked.Must
Mustn't

b-You run.
Must
Mustn't

c-You smoke here.
Must
Mustn't

d-You drive faster than 40 kph.
Must
Mustn't

e-You stop.
Must
Mustn't

II) Tell me about what you must or mustn’t do at school: (Ex: You must study.)

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