Having learned the rules, I'm not 100% sure about articles.
For example, will you tell me which is correct?
Mr.A was a villain in the war.
Mr.A was the villain in the war.
If you say a villain then we understand that there were many villains and Mr. A is one of them.
If you say the villain then we understand that there was one particular villain (perhaps the only one, or perhaps the main one, or perhaps one which was mentioned before) and that Mr. A was that villain.
Hello May Thida Su,
00:13 - 00:19:
Ashlie: I know! He really did think that rubbish bin was a piece of art!
00:26 - 00:29
Ashlie: Yeah. It is something you read in a newspaper or a magazine.
Peter
The LearnEnglish Team
Hello Rafaela1,
Both sentences are possible.
If you say a villain then we understand that there were many villains and Mr. A is one of them.
If you say the villain then we understand that there was one particular villain (perhaps the only one, or perhaps the main one, or perhaps one which was mentioned before) and that Mr. A was that villain.
Peter
The LearnEnglish Team