IX. Complete the sentences with and, but, so, or, because. 1. Olivia was very happy __________ she passed her examination. 2. He didn‟t study __________ he failed the history exam. 3. My mother usually gets home at 5 o‟clock __________then she cooks dinner. 4. I was late for class tills morning __________ the bus was late. 5. We went to Jane‟s house __________ she was out. 6. We can go to the pool __________ we can go horse-riding, whichever you prefer. 7. She is studying very hard __________ she wants to be a doctor. 8. Carol studied hard for the maths test __________ she couldn‟t get a good mark. 9. The floor was wet and slippery __________ Mason almost fell. 10. Mike ate healthy food __________ did regular exercises to keep fit.