（二）
Alice:  Look at this. The sign says the tree is eighty yearsold!
Betty: Wow! I can’t believe that. The leaves are sogreen, and the branches are so thick and strong.When I am eighty, I hope I can be as strong as thetree.
Alice:It is possible. You have to exercise more and eatmore healthy food.
■sign 標示；believe 相信；leaves 葉子；branches 樹枝；thick 粗的；hope 希望；possible 可能的；exercise 運動；healthy 健康的

4.In the dialogue, what does that mean ?
(A) Betty is eighty.
(B) The food is good.
(C) The sign is green.
(D) The tree is old