A noticeable [procenttal] of primiparae are now over 30.

Hint: Primipara: a medical term for a woman having her first child.

percentage

At 22, Joel decided he would enter the [prästerskap] .

ministry priesthood

Info: "Ministry" is particularly Protestant, while "priesthood" is mainly associated with the Catholic and Anglican churches.

Dr. Smythe was invited to be the [rektor] of Clemsdale High School in north Philadelphia.

Hint: The BrE word is normally ‘headmaster’

principal headmaster head

My sister’s been going through some [fas] or other ever since she was a teenager!

phase

Info: Words of Greek origin often have spellings in ph, th, ch, rh and so on.

Our jeep pulled up in a dusty, run-down military [område] on the edge of the city.

Hint: A more specific word than “area” is needed!

compound base

Recalcitrant prisoners were often placed in [isolerings-] cells for a month or more.

isolation

Info: ”Solitary” is not normally used with “cells”, but is ok in “solitary confinement”.

Those who were let go received six months’ ( [avgångs)vederlag] and an offer of job training.

compensation severance pay

Info: Note that "severance pay" is two words; we were looking for one, but this phrase also works...