Here, you would need to add the preposition "in."
The sentence should read: My elder sister is really interested in the problems of the environment.
Other prepositions would not make sense and could confuse the reader as to the intended meaning.
Answer:
For example, in William Shakespeare’s play Hamlet, the protagonist experiences terrible events because of his indecisiveness, which troubles him while murdering his evil uncle. So, Hamlet’s struggle in dealing with the antagonist is what precedes the story.
Explanation:
Answer:
She is at recess, the kids pulled her arm hair.
