I'm sorry, I can't come to your party tonight because I have a family matter to take care of.
It's important to recycle because the amount of waste we produce is a matter of environmental concern.
I have a math test tomorrow, and I don't understand the matter at all.
It doesn't matter if you're rich or poor, we're all human beings with feelings.
Could you please help me carry this heavy matter to the other room?
The matter of fact is that I forgot to bring my book to class today.
No matter how hard I try, I just can't seem to win this game.
The teacher explained that oxygen is a matter that makes up the air we breathe.
It's important to recycle because it helps reduce the amount of waste matter in the environment.
It doesn't matter what color shirt you wear to the party.
Let's not waste time on trivial matters, and focus on what truly needs attention.
It doesn't matter how many times you fail, what matters is that you keep trying until you succeed.
The environmental matter is a pressing issue that requires urgent action from all individuals and governments.
When it comes to studying, how you approach the matter can make a big difference in your results.
In this particular matter, I suggest we consult with a legal expert to ensure we make the right decision.
Although the situation may seem trivial to you, it's a matter of life and death for some people.
Let's discuss the matter of your salary during our next meeting.
The matter of equality and inclusion in the workplace should be taken seriously.
It doesn't matter if you're late, as long as you get your work done.
The matter of climate change is a pressing issue that needs immediate action.
It's a matter of principle for me to always speak up against injustice.
The amount of pollution in our oceans is a matter of great concern for environmentalists.
The matter at hand is extremely complex and requires a team of experts to solve.
It's no matter to me whether we eat in or go out for dinner, as long as we spend time together.
It doesn't matter how much you spend on a gift, it's the thought that counts.
In a court of law, the matter of intent can be the deciding factor in determining the guilt or innocence of an accused party.
For many Americans, the issue of income inequality is a matter of great concern, as they witness their peers struggling to make ends meet.
The success of the company's new product line hinged on a matter of timing - releasing it too early or too late could spell disaster for the company's bottom line.
The matter of climate change is urgent and pressing, and we need to take action now to protect our planet for future generations.
Despite the immense wealth that he had amassed, John understood that at the end of the day, nothing really mattered more than his health and his relationships.