读句子,排序,组成一段完整的对话。
Yes,
No , it isn’t.
It is a bell .
Excuse me , Miss Lu .
What is this ?
Is this a bell , too ?
读句子,排序,组成一段完整的对话。
Yes,
No , it isn’t.
It is a bell .
Excuse me , Miss Lu .
What is this ?
Is this a bell , too ?