阅读下面短文，从短文后所给各题四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。 What's all this tree一 planting for? I was asked when I began writing about 1 a piece of land I had bought in Somerset. The truth is, I just love trees. And I am not 2. As I get older, all I really 3 is to plant trees , Prince Charles says in a BBC documentary in which he is 4 in the wood he planted on the day Prince George was born. There are 5 and wonderful trees in our cities andvillages. They were planted, or self- sown, years, even centuries ago. We takethem fo