阅读理解。 A: Who’s that boy? B: That is my brother. He is Sam. Hello! Sam. This is Sue. She is my good friend. We’re in the same class. This is Sam. He is my brother. A: Good morning，Sam. B: Good morning，Sue. Nice to meet you.  How do you do? A: How do you do? Oh，you look the same (看起来一模一样). Are you twins? B: Yes，you’re right. This way，please. A: OK. B: Let’s go. 1. Who’s that boy? A. Sam. B. Sue. C. 'I'. 2. Who are good friends? A. Sue and I. B. Sam and I. C. Sam and Sue. 3. Who are twins? A. Sue and Sam. B. Sam and I. C. Sue and I. 4. _____ are in the same class. A. Sue and I B. Sue and Sam C. Sam and I