Irregular Plurals
Advanced Level
Fill in each of the following blanks using the plural form of the noun.
a cactus, a couple of __________
one species, two __________
an analysis, several __________
a natural phenomenon, natural __________
one radius, two __________
an appendix, some __________
one potato, two __________
a hypothesis, several __________
one criterion, a number of __________
a syllabus, two __________