I. Complete each sentence with and, but, so, or, moreover, however, therefore, or otherwise. 1. You must do your homework; , you might get a bad grade. 2. He’s seventy-two, he still swims, runs and plays football regularly. 3. John studied hard for the math exam; he got an A+. 4. Do you want a cup of tea, would you prefer coffee? 5. Smoking gives you bad breath. , it is harmful to your health. 6. There are many learning English websites; , some of them are not free. 7. I like to read, 8. I hope you are feeling better my grammar is always on-point. will be back at college soon. 9. Engineering is an interesting career. _, you have to be good at maths. 10. To be a doctor you have to study biology, chemistry is also important.