Fill in the correct question word do you work? is your

Where do you work? Who is your English teacher? Why was Nick late?When does spring begin?What did you write in your SMS?When will you go to Great Britain? How old is your brother : ten or eleven ?What country do you live in ? Why are you so tired?How many books are there on the table?Whose pen is it: Tom's or yours?Who saw a new film yesterday? When will you come back? What time do you usually have dinner?How much did your computer cost?How often do you train in the gym?Where do you plan to go on your VACATION? Whom did Sam invite to his birthday party?