Underline the correct question.1) What did frighten you? What frightened you?2)

Underline the correct question.
1) What did frighten you? What frightened you?
2) Which does hat he like? Which had does he like?
3) Which hat suits him best? Which hat does suits him best?
4) Whose telephone ring? Whose telephone rang?
5) How many people did you invited? How many people did you invite?