四、选择正确的应答语。
()1. Who's on duty today?
A. Don't be so loud.
B. We are, Miss Lee.
C. Be careful, Jack.
()2. What time is it?
A. It's five o'clock.
B. It's my family rule.
C. It's in the bedroom.
()3. Can I play outside now?
A. No, she isn't.
B. Yes, it is.
C. No. You have to do your homework first.
()4. Where is Mum, Sam?
A. She's in the living room.
B. He's in the bedroom.
C. It's time to go to study.
()5. Don't be late for school.
A. I can clean the desks.
B. I'm ready. Let's go.
C. Have a nice day.

1.B 2.A 3.C 4.A 5.B

1. 问句询问“今天谁值日”，答语需说明值日的人，B选项符合语境；2. 问句询问“几点了”，答语需回答具体时间，A选项符合；3. 问句是请求能否出去玩，答语需回应请求，C选项符合；4. 问句询问妈妈的位置，Mum是女性，用she指代，A选项符合；5. 问句提醒上学别迟到，答语需回应准备情况，B选项符合。

五、从方框里选择正确的选项补全对话。
A. I can sweep the floor. What about you, Binbin?
B. Great! Let me clean the blackboard.
C. There are many rules in my family.
D. You, Wu Binbin and I, Mike.
E. Do you often clean your room at home?
Mike: Who's on duty today, Chen Jie?
Chen Jie:1.
Mike: Let's clean our classroom together now.
Chen Jie:2. What can you do?
Mike:3.
Wu Binbin: I can put back the desks and chairs.
Mike: Well done! 4.
Chen Jie: Yes, I do. I often tidy my bedroom at home.
I wash the dishes too. 5.
Mike&Wu Binbin: You're helpful!

1.D 2.B 3.A 4.E 5.C

1. 问句询问值日的人，对应选项D；2. Mike提议一起打扫教室，Chen Jie表示赞同，对应选项B；3. Chen Jie问Mike能做什么，Mike回答自己能做的事，对应选项A；4. Chen Jie答句用“Yes, I do”，说明前面是Do开头的一般疑问句，对应选项E；5. Chen Jie提到在家做的家务，对应家庭规则，对应选项C。