题目内容：

    Legos have been a kind of popular toys for children for more than 60 years. When children get older, boxes of plastic Lego bricks often end up unused and stored in out-of-the-way places around the homes. Parents sometimes end up throwing the Legos away.

Now, the Lego Group toy company is testing a program to make sure the unwanted bricks do not go to waste. The program is called Lego Replay. It aims to make sure the unwanted building blocks continue to make children happy.

Tim Brooks is the Lego company’s vice president of environmental sustainability. He said, "Nearly all Lego bricks we see that are out there have lots more play value in them — multi-generation of play value. It’s a waste of energy and resources to grind them up (碾碎）and make new bricks. ”

Brooks said the idea came from parents who do not know what to do with the old bricks. Placing old Legos in waste containers is not a good answer. Birds and other wildlife may try to eat what looks like Colorful food — with deadly results.

With the Lego Replay program, parents load unwanted Legos of all shapes and colors into boxes. Then, they go to the program website and print out a mailing label. The boxes are sent to processing centers, where the bricks are sorted, cleaned and shipped to aid groups and donation centers.

The Lego Replay test program is set to last through March. If it is successful, the program may be expanded to include other Lego products.

The Lego Group is also looking at other materials to use in their toys. While plastic has proved to be the strongest material, Lego has begun making some bricks out of sugar cane(甘蔗).

1.What’s the main purpose of Lego Replay?

A.To entertain those children without toys.

B.To make unwanted Lego bricks reused.

C.To prevent parents to throw the Legos away.

D.To avoid using unwanted bricks by storing them.

2.Where are unwanted Lego bricks sorted and cleaned according to Lego Replay?

A.At processing centers.

B.At donation centers.

C.On the program website.

D.In the owners’ homes.

3.What does Brooks probably agree with?

A.Lego bricks waste too many resources.

B.Unwanted Lego bricks still have value.

C.We should store old Legos in waste containers.

D.Lego bricks are favorite food of some birds.

4.What does the Lego Group explore according to the last paragraph?

A.More other Lego products.

B.Proper use of plastics.

C.Similar products to sugar cane.

D.New materials of producing bricks.