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Trees have ………………….. (1) a meaningful role in the ………………….. (2) development of Canada and continue to be of commercial, environmental and aesthetic importance to all Canadians. Maples contribute valuable wood products, keep the maple sugar ………………….. (3) alive and have to beautify the landscape.

Since 1965 the maple leaf ………………….. (4) the most important feature of the National Flag of Canada and the Maple three with the leaves has become the most well-known Canadian ………………….. (5)  and nationally and internationally. Maple leaf pins and badges are proudly ………………….. (6) by Canadians abroad, and are recognised around the world. ………………….. (7)  the maple leaf is closely associated with Canada, the map tree was never officially recognize ………………….. (8)  Canada's emblem until 1966.

1. A. taken

B. given

C. done

D. played

2. A. history

B. historical

C. historic

D. historian

3. A. industry

B. industries

C. industrial

D. industrially

4. A. was

B. have been

C. has been

D. is

5. A. sign

B. symbol

C. tree

D. leaf

6. A. wear

B. wore

C. worn

D. to be worn