-Don't run in the classroom, David.A.Never mind, Miss Li.B.Sorry,Miss Li.C.I'm fine, Miss Li.
—How are you?— A.How are you? B.I'm fine,thank you. C.Hi!
—What's your name?— A.My name's Mike. B.This is Mike. C.Nice to meet you,Mike.
—I have a crayon.— A.This is a pen. B.Me too. C.OK!
—Let's to to school.— A.Thank you. B.Bye! C.OK!
— —Nice to meet you,too.A.Hello! B.Nice to meet you. C.Good morning!