LA CAUSE As/sinceAs/since he was rather late, he decided to take a taxi.
That's why/That's the reason whyHe had been abroad too long, that's why the place no longer felt like home.
Because ofBecause of his lake of training he had difficulties finding a job.
Out ofHe ruined all her plans out of sheer malice.
For fear of/for lack ofThey left the competition before the end for fear of being accused of using performance-enhancing substances.
For + V-ingHe will be punished for telling lies.