根据上下文内容在每个空格内填入一个适当的单词。
A: Hello, Li Ming.
B:Hello, Li Lei.____1____ are they?
A: Oh, sorry. This is Lucy. This is Lily. They are twins. Lucy, this is my friend, Li Ming.
C: Hi, Li Ming. ___2_____to___3_____ you.
B:Nice to meet you, ____4____ What class are you____5____?
D: We’re in Class 2, Grade （1）
B:Oh, very good. We are in the same___6_____.
D: By___7_____ ___8_____，____9____ you Japanese?
B: ____10____,I’m Chinese.