用特殊疑问词填空。
1. — _____________ is it from Tian'an men Square to the Summer Palace?
— I don't know.
2. — _____________ are you from?
— I am from the U. S.
3. — _____________ is your brother?
— He is a police officer.
4. — _____________ is Children's Day?
— It's June 1st.
5. — _____________ pencils do you have?
— Five.
6. — _____________ is the weather today?
— It's rainy and cool.