Was/were
I'm at work now.
(yesterday)
I was at work yesterday.
Picasso / a painter
Was Picasso a painter?
bed
There is a bed.
They aren't at home today.
(yesterday)
They weren't at home yesterday.
the Beatles / from the United States
Were the Beatles from the United States?
pillows
There are some pillows.
He's at a restaurant tonight.
(last night)
He was at a restaurant last night.
Amy Winehouse / American
Was Amy Winehouse American?
lamp
There is a lamp.
We aren't at school today.
We weren't at school yesterday.
Charles Dickens and Jane Austen / writers
Were Charles Dickens and Jane Austen writers?
table
There is a table.
Are you at work now?
(last night)
Were you at work last night?
Carmen Miranda / Brazilian
Was Carmen Miranda Brazilian?
towels
There are some towels.