根据所给单词的适当形式填空 1. Is that (you) scarf? Yes, it's ( I ). 2. Let (we) help (she). 3. The crayons aren't (they). They're (we). 4. Whose rubber is it? ________ (she). 5. These are (you) paints. (you) are new. 6. Whose scarf is this? Is it (his)? 7. Look at the storybooks. Put _______(they) on the desk.