用适当的疑问词完成下列句子。
What How many How old Where Who
1.－ is his job? －He's a bus driver.
2.－ watermelons can you see? －I can see eight.
3.－ is the camera? －It's on the fridge.
4.－ is your friend? －He's thirteen.
5.－ is that student? －He's my friend, Xiaofang.1. What 2. How many 3. Where 4. How old 5. Who