听一段材料，回答下面几个小题。What kind of passage have you just heard?
A. A public lecture.
B. A radio announcement.
C. A government statement.What is the main purpose of the event?
A. To increase people's sense of environmental protection.
B. To invite people to join an environmental organization.
C. To persuade families to have an outing in the mountains.How many trees are going to be planted today?
A. 700.
B. 2000.
C. 4000.What does the speaker advise volunteers to do?
A. To learn some tree-planting skills.
B. To come along any time they like.
C. To bring along their gloves.
Why did the boss criticize Joseph?
A.He was late for work.
B.He quarrelled with the man speaker.
C.He criticized the man speaker too seriously.
What does the man want to do?
A.Buy a fan.
B.Use electricity.
C.Cool himself down.
What does the man mean?
A.Tom was talking with the postman.
B.Tom was running around the corner.
C.Tom was helping the postman with his work.
How much was the TV set?
A.$60.
B.$120.
C.$90.
听一段材料，回答下面几个小题。What kind of clothes does the speaker’s sister like?
A.Cheap clothes.
B.Ordinary clothes.
C.Clothes of new design.What do the twin sisters have in common?
A.They enjoy loud music.
B.They enjoy friendship.
C.They want to have their children.Why doesn’t the speaker like living in the same room with her twin sister?
A.The speaker likes to keep things neat while her sister doesn’t.
B.Her twin sister often brings friends home and makes too much noise.
C.They can’t agree on the color of the room.