Two things you don´t have to do before you go to bed., Two things you don´t have to do when you´re on holiday., Two things you must do the night before an exam., Two things you don´t have to do if you shop online. , Two things you must do and two things you must not do when you´re driving., Two things a teacher has to do before a class., One thing you must do if you have a headache., Two things you must not do if you have COVID., Two things a good student has to do to improve his/her English., Two things you have to do after class today., Two things you can't do when you're at the hospital., Two things you can't do while you're taking an exam.

7C: Have to, don’t have to, must, must not, can’t

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