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.