3 . 听下面一段较长对话，回答以下小题。
1. Where does the conversation take place?

A．At a park.

B．At a rubbish station.

C．At a government office.

2. How many colors do the speakers use for different rubbish?

A．One.

B．Two.

C．Three.

4 . 听下面一段较长对话，回答以下小题。
1. How does the woman feel about the recycling rules?

A．Confused.

B．Confirmed.

C．Content

2. Which items will be regarded as general waste?

A．Cans.

B．Bottles.

C．Envelopes.

3. What is the problem with the plate?

A．It is too big.

B．It is too dirty.

C．It is broken.

4. When is the recycling collected?

A．On Tuesday.

B．On Wednesday.

C．On Thursday.

5 . What is the main idea of the conversation?

A．An idea.

B．An announcement.

C．A dustbin.

6 . 听下面一段独白，回答以下小题。
1. Where do Indonesians put their garbage?

A．In the front of their houses.

B．In the public garbage cans.

C．In the official garbage bags.

2. What colored cans do Germans put metals?

A．Yellow.

B．Blue.

C．Gray.

3. What do we know about the garbage bags in Korea?

A．Their price depends on the type of waste.

B．They are provided by the government for free.

C．Different districts have different official garbage bags.

7 . 听下面一段较长对话，回答以下小题。
1. When can plastic bottles be left outside the door?

A．On Wednesday.

B．On Thursday.

C．On Friday.

2. How does the man sound in the end?

A．Disappointed.

B．Frustrated.

C．Confused.