1. Olivia was very happy because she passed her examination.

2. He didn't study so he failed the history exam.

3. My mother usually gets home at 5 o'clock and then she cooks dinner.

4. I was late for class this morning because the bus was late.

5. We went to Jane's house but she was out.

6. We can go to the pool or we can go horse-riding, whichever you prefer.

7. She is studying very hard because she wants to be a doctor.

8. Carol studied hard for the maths test but she couldn't get a good mark.

9. The floor was wet and slippery so Mason almost fell.

10. Mike ate healthy food and did regular exercises to keep fit.

1. because : bởi vì
2. so : vì vậy
3. and : và
4. because : bởi vì
5. but : nhưng
6. or : hoặc
7. because : bởi vì
8. but : nhưng
9. so : vì vậy
10. and : và