I am a reliable, responsible, hard-working person who gives energy to all activities. OR I am a reliable, a responsible, a hard-working person who gives energy to all activities.
Well, I'm not tha native speaker,but we learned at school it this way:
I am reliable,responsible and hard-working person......so we learned it without the articles.
But I'm not sure if it is correct,how I said I,m not the native speaker. But if you're not sure you can say I think this:
I am very reliable,responsible and hard-working person....
When you put there word VERY you don't have to think of articles.
Hope I helped a little bit. Can you repay me it? I put there a question about penpal. The topis is Would it be weird if I write to mother of my penpal? Can you please look at it and write under the question what dou you think about it? Thanks