单项选择题
According to the passage, Grandma Moses began to paint because she wanted to _____.
单项选择题 From Grandma Moses' description of herself in the first paragraph, it can be inferred that she was______.
单项选择题 What has sometimes caused plants to die out of the past
单项选择题 In line 14, the word "spotted" could best be replaced by_____.
