1. Make sure exactly what to do BY checking the instructions.
2. There's no point spending too long on one questions.
3. Don't waste time trying to see how your friend are getting on.
4. Avoid careless mistakes BY allowing time to check all your answers.
5. It's rarely worth cheating in the long run.
Dlaczego w niektórych odpowiedziach konieczne było dodanie by a w innych
wystarczył sam czasownik w formie ing?