name 3 things you have to do after lessons, name 3 things you mustn't do at home, name 3 things you have to do if you have a pet, name 3 things you must do before you get on a plane, name 3 things you managed to do last year, name 3 things you don't have to do when you are on holiday, name 3 things you shouldn't do before going to sleep, name 3 things mustn't do in public place, name 3 things mustn't do before you are 18, name 3 things a teacher has to do before a lesson, name 3 things you must do to improve your English.

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