从括号中选出适当的词填空,把句子补充完整。
1. California is a city of (America, Canada).
2. (Where, What) does an elephant live?
3. Are there many (city, cities) in this country?
4. My mother works (on, in) Beijing.
5. My little sister is (younger, older) than me.
6. East points (left, right) on the map.