为下列句子选择正确的应答语。
A. He is my brother, Sam.
B. No, he is a farmer.
C. I'm from Singapore.
D. He is a driver.
E. Glad to meet you.
1.Where are you from? (________)
2.Who is this boy? (________)
3.What does your father do? (________)
4.Is your uncle a doctor? (________)
5.This is my brother, Tom. (________)