1) two things you shouldn't do before you go to bed. 2) three things you don't have to do when you are on holiday. 3) two things you shouldn't do the night before an exam. 4) two things you must do and two things you mustn't do when you are driving. 5) one thing you should do if you have a headache. 6) two things you should think about before you buy a new phone.  7) one thing you had to do in the English class last year which you found very difficult.  8) three things a good student has to do to improve his/her English. 9) two things you have to do after class today. 10) two things you should think before choosing a holiday destination.

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