Grammar Review- Be Verb

________ (be) your parents eating breakfast later?

I ________ (be) in my bedroom ten minutes ago.

Miss Green ________ (not be) in America last Christmas.

My sister ________ (be) drinking milk now.

We ________ (be not) at home last night.

The children ________ (not be) their homework now.

My brother and I ________ (be) in the library yesterday evening.

________ (be) Mr. Smith an English teacher in this school last year?

Where ________ (be) Sam yesterday?

________ the tall boy jumping rope now?