Few people knew how to use the Internet in the past,_____?
A：did they
B：didn't they
C：did he
D：didn't he
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.
