Question

Complete com A and An
A)____ dog.
b)______ student.
c)_______egg.
d)_______umbrela.
e)______teacher
f)_______cat
g)_____mother
h)___father

Answer 1

a) a dog
b) a student
c) an egg
d) an umbrela ( Rihana´s umbrela ? Maybe)
e) a teacher
f) a cat
g) a mother
h) a father

a before consonants
an before vowels

Answer 2

A) a dog
B) a student
C) an egg
D) an umbrella
E) a teacher 
F) a cat
G) a mother
H) a father

PS: perceba que usamos "an" quando a próxima palavra palavra começa com uma vogal e usamo "a" quando a próxima palavra começa com uma consoante