approprite

suitable for a particular time, situation, or purpose

It is _________ to say "thank you" when someone helps you.

communicate

express your thoughts and feelings so that others understand them

Some people ________ their ideas by writing fiction.

period

a particular length of time in history or in a person's life

Some novels take place during a specif __________ in history. For example, historical fiction might be set in the ninetheeth century.

precise

exact and correct in every detail

Directions must be  ______ so that students know exactly what to do.