Sergei considers the goldfish to be his friend. From the statement, it
is shown that Sergei has trust issues with other beings (May it be a human or
animal). He may have a dreadful experience in the past that prevents him from
befriending others. And he made an exception with the goldfish because he found
out that the goldfish will not leave him even if he is troubled.
Answer:
Adverbs modify verbs, adjectives and other adverbs.
The children, and the dolls, are nothing more than playthings. They are there to look nice and dress pretty, but not to do anything other than what their owner wants them to.
They are controlled by the strings of society; enslaved by the husband (and father), Torvald.
Because it gives them a sort of “authority” making others believe that they are the truthful ones and nobody else can be.