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Выполнить письменно упражнение, заполняя пропуски словами must / mustn’t
1. I _____ help your mother.
2. I _____ play with my little sister.
3. I _____ be late for school.
4. I _____ make your bed.
5. I _____ eat in class.
6. I _____ get up early.
7. I _____ miss classes.