Exercise 9 (§§ 71–84, Pp. 34–39)
1. Write sentences in which the following words, letters, or figures are used in the plural number:—
German,
radius,
lens,
moose,
wharf,
index,
piano,
thesis,
4,
500,
p,
q,
and,
syllabus,
staff,
die,
s,
t,
seraph,
hero,
stimulus,
crisis,
elf,
heathen,
brother-in-law,
July,
March,
spoonful,
memorandum,
Miss Allen,
Master
Allen,
Mr. Hayes,
General Raymond,
Knight Templar,
head (of cattle), animalcule, potato, valley, formula, penny, curriculum, dwarf, man-child.
2. Write sentences in which the following nouns are used in the singular number:—
strata,
phenomena,
alumnæ,
alumni,
candelabra,
species,
cherubim,
oases.