You mustn't drop litter in class., You should visit a dentist., You don't have to go to school on Monday., You shouldn't take any cough syrup now., You must come to school on time., You must put out a fire in the forest., You mustn't make a noise in the park., You must listen to your teacher., You have to help with the chores., Do you have to do the vacuuming?,

Starlight 4 Module 5 Modal verbs have to/should/must word order

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