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