问题 补全对话,情景问答
看图补全对话。
1.A: What are  they _________?
B:They are _________.
2.A: Are they _______ ?
B: Yes, they are.  
3.A: _________ your  birthday?
B: It's May 1st.
4.A: What is John doing?
B: He's ________.
答案

1. doing、playing chess   2. having a picnic   3. When is   4. catching butterflies

单项选择题
单项选择题