根据句子意思及所给的词首字母或汉语提示,完成下列单词。 ——E____ me, Are you Mr. Green?——Yes, I am. Jane and Amy are s____ . Their mom is a teacher. Maria and Jane b____ have long hair. I have a friend. He is____ (二十) years old. His____ (手) are big.
已知a、b、c在数轴上的位置如图所示,则下列结论正确的是( )