traducción de : 1. The students revised for their maths exams. besides they wrote their history essay yesterday
2. Carol always does her best in order to help people.

3. beacuse of the thick fog, lots of cars were held up on the motorway.

4. The factory installed new devices as a result its emissions to the environment have dropped

5. Andy helps a lot at home on the contrary his sister never tidies her room.

6. You won't pass the exam unless you do your best

7. Mary bought that black dress in spite of being too expensive for her.

8. The new managing Director runs the company quite efficiently besides he's really nice to the employees.

9. My car had a puncture,so I was late for the meeting yesterday.

10. You'd better wear warm clothes in case it gets colder tonight​