2.      I only come if they invite me.

I won't come unless they invite me.

3.      He didn’t revise all his lessons, he failed the exam.

He didn’t revise all his lessons so he failed the exam.

4.      I did not know you were coming, so I did not meet you at the airport.

Because I did not know you were coming, I did not meet you at the airport.…….

5.      I live too far from my office. I am not in time for work.

I live too far from my office so I am not in time for work.……….

6.      The children don’t go to school in the snowy weather.

If it snows, the children won’t go to school.

7.      He died when he was so young, otherwise, he would be a famous musician by now.

If he had not died when he was so young, he would be a famous musician by now……….

8.      You must tell me the whole truth or I won’t help you.

If you tell me the whole truth, I will help you.…….

9.      The car breaks down so often because you don’t take good care of it.

You don’t take good care of the car, so it breaks down so often.…….

10.        She got married at such an early age; otherwise, she would be at university now.

If she had not gotten married at such an early age, she would be at university now.…….