Question

Complete the senteses with,am,is or are:
A- we at school.
B- you my friend.
C- they students.
D- He a doctor.
E- my brother hungry.

Answer 1

a) Falta o verbo. O verbo TO BE usado para WE (plural) é o are.
We are at school. 

b) Falta o verbo também. Seja plural ou singular, sempre usamos ARE com o YOU.
You are my friend.

c) Falta o verbo. They é plural, portanto usamos ARE.
They are students.

d) Falta o verbo. Com singular usamos IS.
He is a doctor.

e) E falta o verbo também. Como é singular, usamos IS.
My brother is hungry.

Answer 2

A) We are at school
B) You are my best friend
C) They are students.
D) He is a doctor.
E) My brother is hungry.

Simple Presente é bem fácil de lembrar.
I Am
You Are
He/She Is
We Are
They Are

With significa "com" e vem sempre depois do verbo "ser". Por exemplo:
I AM WITH my friend
He IS WITH a doctor