The police are still trying to establish the cause of the fire.
She had died of natural causes.
Overworking can be a cause of many problems. (First Certificate in English; B2; Polish)
The money will all go to a good cause.
The war will not end as long as people believe they are fighting for the right cause.
It would be a shame if people got the wrong impression, that it is not worth working and making an effort for charity and good causes and I would certainly not like to beli[e]ve that your paper contributed to giving that impression?? (Certificate in Advanced English; C1; Danish)
He's never given me any cause for concern.
Nowadays, the world is filled with fast food restaurants, making diseases like obesity a cause for concern everywhere. (Certificate of Proficiency in English; C2; Portuguese)
The difficult driving conditions caused several accidents.
Most heart attacks are caused by blood clots.
The bright light caused her to look away.
It is troubling that young people are eating a less healthy diet nowadays than their grandparents did. This is caused mainly by changes in food and eating habits. (First Certificate in English; B2; Spanish)