__ (they/be) the best in the class?
Were they the best in the class?
Why __ (his parents / take) him to opera last night?
Why did his parents take him to opera last night?
__ (the actors / be) good?
Were the actors good?
What letter __ (you / send) yesterday?
What letter did you send yesterday?
When __ (John / go) to the cinema?
When did John go to the cinema?
__ ( the concert / start) at 8 pm yesterday?
Did the concert start at 8 pm yesterday?
Where __ ( you / leave) your bag yesterday?
Where did you leave your bag yesterday?