1) A poisonous snake didn't kill Hamlet's father , but it was a painful death.
2) He was full of hatred for his stepfather and his mother’s behaviour filled him with anger.
3) Hamlet was not very decisive and he started behaving strangely.
4) Hamlet was suspicious and thought that Claudius was listening to him and his mother.
5) When he returned from England, Ophelia was dead but Claudius was still alive.