What is a main part of speech that is often used to describe or indicate an action

What does that mean

Got to school and learn

A. they give the reader hope. if the whole book was dark & unhopeful it’d be a little less interesting, little moments make it more interesting to read because then you want to know what happens. if it’s all dark there’s no point in reading if you already know the outcome of it.

Ithink it’s the fourth one ! it sharpens our reading skills !