John (is, are) a good student.
We (am, are) good students.
Today ( is, are) Monday.
This (is,are) a good exercise.
William and Harry (is, are) brothers.
They (is, are) good students.
I (am, is) a student of English.
The window (is, are) open.
Both doors (is, are) closed.
Pierre and I (am, are) brothers.
We (am, are,is) brothers.
Miss Lapierre ( is, are) a teacher.
She ( is, are, am) a very good teacher.
Mr. Bellemort (is, am, are) a teacher.
He (is, are) my teacher.
Mr. and Mrs. Dorais ( is, am, are) Vietnamese.
You ( is, am, are) a good boy.
I (is, are, am) good at English.
The weather today ( is, are, am) good.
This ( is, are, am) a good exercise.