阅读下面短文，在空白处填入一个适当的词或使用括号中词语的正确形式填空。

Hello,(boy) and girls! I'm your good friend. You often(经常) meet . (I) in the pencil box. I am yellow red. I'm very nice. Am I  eraser？No, I'm not. Am I a ruler? Yes, I am. I have (number), and I can measure(测量) the length(长度). (these) is my friend. It's a telephone. The color of it is white. It's (Sally). She can (call) her friends with(用) it. How can you (found) Sally? You can call her 584-9003.