Complete the question with a question word

Complete the question with a question word:
1……………… are you so happy? – Because I have a birthday party.
2……………… do you study English with you at home? – My sister.
3……………… carrots do you need? – Two kilos.
4……………... wants to sing this song? – Tom.
5…………….. does you usually have for lunch? – Rice and fish/
6…………….. do you have the longest holidays? – In summer.
7…………….. water does he drink a day? – 2 Liters.
8……………. does Ms. Tam go to see a movie? – She never goes to she a movie.
9……………. Is sitting behind you? – Tung.
10…………….. is the supermarket? – In fomt of the park.