一、听录音,根据所听内容,选出合适的答语。
()1. A. Smoke from cars and factories.
B. We can throw rubbish in the street or in the park.
C. We can put our rubbish in the bin.
()2. A. It's messy and dirty.
B. The village is clean.
C. We can walk to the street.
()3. A. He throws a banana skin on the ground.
B. He is doing his homework in the study.
C. He swept the floor.
()4. A. Yes, please.
B. I'm sorry.
C. You are welcome.

( )1. What is David doing in his bedroom?

( )2. What's on the floor?

( )3. How does David's mother feel at first?

( )4. What does David's mother do in his room?

三、听录音,根据所听内容,完成表格。