Задание 
   Read some tips on how to minimise stress factors. Complete the sentences with the correct forms of the modal verb should.
Choose the correct option.
If you don't want to feel nervous, you [should|shouldn't] do your homework on time.
If you want to avoid stress, you [should|shouldn't] eat more fruit and vegetables.
If you want to be healthy and calm, you [should|shouldn't] take more vitamins.
You [should|shouldn't] feel nervous when exams start.
You [should|shouldn't] panic, even if you lose something valuable.