Choose the best answer(用When, Where, What, Whose, How填空)
1.—_______ did you have for breakfast? —Some cabbages.
2.—_______ did you have breakfast? —In the restaurant.
3.—_______ kitchen is this?It’s too dirty. —It’s mine.
4.—_______ were you last night? —I was unhappy.
5.—_______ did you have breakfast yesterday? —At seven.