1.
a. your parents = we
b. your girl friend = she
c. I and my friend = we
d. a cat = it
e. pens = it
f. your brother = he
g. your grandma = she
h.my shelf = me
i. yourshelf = your
L. cellphones = it
3.
A teacher -> teachers
My classroom -> classrooms
A soda -> sodas
A hamburger -> hamburgers
A milkshake -> milkshakes
A saleselerk -> saleselerks
An ereaser -> ereasers
A pencil case -> pencil cases
A peach -> peaches
An organge -> oranges
A glass of beer -> glass of beers
A pizza -> pizzas