选用适当的疑问词填空
1. —
When
 is your birthday?
—It's on 2nd August.
2. —
How old
 are you?
—I'm 12.
3. —
What
 do you want to do on her birthday?
—I want to sing a song for her.
4. —
How much
 are those oranges?
—Six yuan a kilo.
5. —
How many
 kilos do you want?
—I want five kilos.
答案:1. When 2. How old 3. What 4. How much 5. How many