Verb to be

I … your friend.
are
is
am

Sally … a student.
are
am
is

You … very pretty.
is
am
are

My brother … at school now.
are
am
is

… it an interesting book ?
are
am
is

I … good at English.
are
is
am

We … tired today.
is
am
are

Lucy and Kate … smart girls.
is
am
are

My mother … very kind.
are
am
is

… you a doctor ?
is
am
are

My books … in my bag.
is
am
are

She … a teacher.
are
am
is

Tommy … nice boy.
are
am
is