1、(2010·福建省普通高中毕业班质量检查)
In a small open courtyard, outside a school building, there were flowers here and there. In the sunshine, a  36  was lying on the grass, reading a book with  37  concentration. Near her, another child was carefully watering the flowers, while a third was  38  with his back against a tree and had a  39  on his knees. He appeared to be drawing or writing something on it. He was _40  in his task, like the first child.