Relier Pairs First conditionalVersion en ligne This exercise will help you to practice and reinforce the first conditional sentences. par María del Rosario Alonso 1 The pandemic won't stop 2 The baby won't sleep well 3 If you want to be fit, 4 Unless you work hard, 5 You will be under pressure you will have to exercise your body. if you don't organize your time. unless everybody takes action. you won't have the results you wish. if she doesn't listen to music.