主语为第三人称单数时be动词的用法 — 英语填空题
题目
用 am / is / are 填空，使短文完整。Hi! I ___ Oliver. I have three friends. Mike ___ tall and strong. Lily and Amy ___ quiet and friendly. My new friend Zhang Peng is a boy. He ___ helpful at school. His little sister is cute. She ___ shy, but very kind.