Michael was sacked from his job. He refused to work at weekends.
Michael was sacked from his job. He refused to work at weekends.
A. Had it not been for his refusal to work at weekends, Michael wouldn’t have been sacked from his job.
B. Only when Michael was sacked from his job did he refuse to work at weekends.
C. Not until Michael was sacked from his job did he refuse to work at weekends.
D. No sooner had Michael been sacked from his job than he refused to work at weekends.