Final answer:
The exercise involves combining English morphemes to form words with attention to spelling changes due to palatalization and vowel sounds, as well as analyzing word formation, identifying different spellings of phonetic sounds, and understanding correct spelling and assimilation in morphemes.
Step-by-step explanation:
The question involves the combination of prefixes, bases, and suffixes in English to form new words, particularly focusing on changes in spelling due to palatalization and vowel sounds. An example given is 'dis + gest + ion', which forms the word 'digestion'. When combining these morphemes, the [ch] sound is spelled with a , as shown in the resulting term 'digestion' where the 't' represents the [ch] sound due to palatalization effects in English pronunciation.
Similarly, the exercise also involves marking the long [ē] sound in various words created by adding suffixes to base forms. For instance, 'gallery + i + es' becomes 'galleries', where 'ies' is the part that denotes the [ē] sound.
The review sections require understanding of correct spelling, identification of phonetic sounds spelled in different ways (such as [j] spelled as , , ), and the analysis of word formation and assimilation in morphemes, particularly with the sound [r] as spelled with .