2. Why was/were/did you late for class yesterday?
3. Which instrument do/does/was your sister play?
4. Was/Were/Did you born in this country?
5. What cat did/has/have your father got?
6. Do/Does/Are Mark and Laura have any money?
7. Which country do/is/are your parents come from?
8. How many people are/is/was there at the conference?