How would that look in active voice? "Our trainers and students caught covid, so we had to cancel their classes"? Active voice there feels like they're shiftin

How would that look in active voice? "Our trainers and students caught covid, so we had to cancel their classes"? Active voice there feels like they're shifting the blame to their employees, which is never a good look for an employer. I think they did the right thing by keeping it focused on their lack of planning/foresight.