У дзвюх кнігах 100 старонак. У адной з іх 63 старонкі. На колькі старонак у адной кнізе больш, чым у другой?

Has set up- present perfect, active voice
is calling- present continuous, active voice
was spent- past simple, passive voice
are not satisfied- present simple, active
is being discussed- present continuous, passive
will have been sold- future perfect, passive