题目内容：

The Master Gardener Foundation

Aim

The Master Gardener Foundation provides free information to the public on environmentally  safe gardening practices and water conservation. The information is research-based and encourages limited use of farm chemicals and fertilizers.

Donation Activities

The master gardeners here did much donation work. They donated over 35,000 volunteer hours, serving 40,000 adults and more than 5,200 children. They did this through about 35 plant clinics, 6 demonstration gardens, 4 youth gardens, as well as a classroom program and dozens of workshops. The Master Gardener Foundation provides roughly two-thirds of the financial support for all these valuable activities.

Washington State University currently provides the salary and benefits of the Master Gardener Program. The foundation funds office space and supplies, as well as a part-time program assistant.

The Master Gardener Program

Safe and green gardening and water use practices are vital to preserving our environment. The Master Gardener Program seeks to provide this kind of education and information to the citizens for free. It is a highly successful example of cooperation between a foundation and volunteers.

Waiting for Your Donations

The Master Gardener Foundation is a non-profit organization, and all donations are allowed by law and support the Master Gardener Program and activities.

Please consider a donation to the Master Gardener Foundation and help keep our environment green!

1.What does the underlined word "this" in paragraph 2 refer to?

A.Science research. B.Adopting children.

C.Donation work. D.Sparing volunteer hours.

2.What do we know about the Master Gardener Program?

A.It's very expensive.

B.It proves to be unsuccessful.

C.It provides education just in producing farm chemicals.

D.It's a bridge between the foundation and volunteers.

3.What is the main purpose of the text?

A.To encourage donations.

B.To describe volunteer work. '

C.To spread the agricultural knowledge.

D.To give some suggestions to gardeners.