Why does Macbeth go to see the witches again?

he is afraid he might lose his position as king

Explanation:

Macbeth visits the witches for a second time because he is afraid he might lose his position as king. Now that he has become king, Macbeth is paranoid that others will discover that he killed Duncan and kill him or dethrone him in some other manner.

themselves

an intensive pronoun is a pronoun that ends in self or selves, such as himself, herself, themselves, yourself, ourselves. since band members is a third person plural, the correct intensive pronoun would be themselves. if the band was talked about as a collective noun, itself would be the appropriate intensive pronoun. intensive pronouns are used to add emphasis to the noun it's modifying which is why it directly follows it.