听下面一段材料，回答第1-5题。
1. How long has the writer lived in the countryside?
A. For more than 20 years.
B. For about 10 years.
C. For less than 20 years.
2. Where were the sparrows singing?
A. They were in the bedroom.
B. They were near the window.
C. They were in their home.
3. What were the swallows busy doing in the morning?
A. They were busy looking for food.
B. They were busy jumping and flying.
C. They were busy singing.
4. Can the writer see the sparrows now?
A. Yes, he can see them as usual.
B. Yes, and there are more than before.
C. No, he can't.
5. Why do the birds leave this place?
A. Because the countryside is becoming better.
B. Because they can't find food easily and people often kill them.
C. Because they can't give people more food.
