I have a question about English. I'm little confused about English grammar. Could you kindly answer my question? 1.Which sentence do you think correct? or most suitable? (1)The lion is the king of animals. (2)A lion is the king of animals. (3)Lions are the king of animals. (4)The lions are the king of animals. 2.Is that correct that subject is plural noun while complement noun is singular noun? (Lions(plural) → the king(singular)) I hope someone solve my English headache... Thank you.