The subject and verb don't agree, the revised sentence should be
"Sequoia and Charles plan to exercise together."
The firm had an excellent SAFETY record
That was very IRRESPONIBLE of you to do
They say the most important quality to become a teacher is PATIENCE
The country's economy needs a quick RECOVERY after the financial crisis
A mother would do anything to keep her child out of DANGER
Unfortunately, there were very few SURVIVORS after the train crash
It's SURPRISING that you failed the test after studying for weeks
It's illegal to phone the emergency services and give them UNTRUTHFUL information
that learning facts is more important than seeking to understand them.