I think it is was both surprising and a revolution in its special effects.
The correct answer would be helping verbs. The helping verbs are combined with the main verbs to indicate time, possibility and other kinds of meaning. The helping verbs' function is to help extend the meaning of the main verbs by adding more detail on it. Helping verbs are very essential in the formation of different tenses of the verb.
Answer:
although I don´t have the following options here goes my opinion
Explanation:
change of subject to improve Alexandra´s bad mood