问题
补全对话，情景问答
看图，把句子补充完整
A: Is a telephone? A: Is a ?
B: , it is. B: No, it .
A: What's in ? A: May I ____ ____?
B: It's a . B: Come in, please.
答案
1. that/this Yes 2. that/this TV isn't 3. this/that English clock 4. come in
