Общий вопрос:
Do you write a test every day? - Present Simple
Did you write a test yesterday. - Past Simple
Are you writing a test now?- Present Continuous
Have you written a test yet?- Present Perfect
Will you write a test tomorrow?- Future Simple
Специальный вопрос:
Who writes a test every day?
Who wrote a test yesterday?
Who will write a test tomorrow?
Who is writing a test now?
What do you write every day?
What did you write yesterday?
What will you write tomorrow?
What are you writing now?