Questions on Much Ado About Nothing

1) What did Don John vow to do?
Don John vowed to overthrow his brother Don Pedro, who is the prince of Arragon. He also wanted to ruin Don John and Claudio's plan to gain Hero's love.

2) Who was Claudio in love with?
Claudio was in love with Hero, the daughter of Leonato.

3) What are the prospectives of love by Beatrice and Benedict?
Beatrice and Benedict both seem like they didn't believe in love. They kept hitting each other back and forth with harsh comments on each other and on the topic "love". Benedict claimed that he is loved by many but loves none and Beatrice said that she would rather hear a dog bark at a crow than hear a man say that he loves her.

4) What is the plan executed by Don Pedro?
The plan executed was thae Don Pedro would pretend to be Claudio, who is in love with Hero. He would be disguised as Claudio and tell Hero all about his love for her and at the end of it all, she will belong to Claudio.