Unit 1 Hello! 习题 2一、写出下列字母的小写形式。A B C二、情景选择题。1. Mike: Hello, Sarah. Sarah: ____ A. Great! B. Wow! C. Hello, Mike!2. Miss Li: Hello, I’m Miss Li. Lingling: ____. A. Hello, Miss Li. B. Wow! C. Goodbye!3. Tom: Good morning! Jack: ____. A. Hello. B. Nice to meet you, too! C. Thank you!