单项选择题

What's the main reason for big cities to build their own recycling plants

A．To deal with waste in a better way.
B．To protect the environment from pollution.
C．To get raw materials locally.
D．To get big profits from those plants.

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单项选择题

The phrase be well on their way to (L.1, Para.1) most probably means ______.

A．have completed what was started
B．have gotten ready to start
C．have achieved a great deal toward
D．have put an end to

单项选择题

The passage is mainly about ______.

A．a cheap way to get energy
B．the location of recycling plants
C．new ways of recycling waste
D．the word rubbish could lose its meaning