New semester, new homework blog: https://commoncurriculum.com/sites/greek-2-homework
What the test will most likely resemble, although of course things will change/be added/be removed.
Students: here is a link to a drive with books on your topics. Some of them are quite dense. Don't be intimidated - skim and see if anything catches your eye.
Dear students, as to why one contracts while the other ones does not, there seems to be no answer (that is, no answer that the grammarians are interested in answering). If you look at pg. 130 in your textbook, adjectives of this type do not contract where one would expect them to.