1 . 听下面一段较长对话，回答以下小题。
1. By 2020, where should trash sorting happen?

A．In all major cities of China.

B．Only in Zhejiang province.

C．In Ms. Chu’s neighborhood.

2. What is Ms. Chu’s profession?

A．Trash collector.

B．Reporter.

C．Politician.

3. What is one of Mr. Tang’s solutions?

A．Door-to-door training.

B．Free trash cans.

C．Plastic trash bags.

4. How will a trash collector find a bag’s owner?

A．He will call a volunteer.

B．He will see a name on the bag.

C．He will scan the bag with a phone.

2 . 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.