A: Can you help me?(你能帮忙吗?)
B: Sorry, I’m busy now.(对不起,我正忙呢.)
A: Is there any student in the classroom?(教室里有学生吗?)
B: Yes,Wang Li is in the classroom.(是的,王莉在教室里.)
A: (knock at the door)May I come in?(敲门)我可以进来吗?
C: Yes,please.(请进.)
A: Are you free now?(你现在有空吗?)
C: Yes,I am.(是的,有空.)
A: Please help me carry the books.(请帮我搬一下书.)
C: OK! Are they over there?(好吧?选书在那边吗?)
A: Yes,they are.(是的,在那边.)
C: Books,here you are.(给你书.)
A: Thank you.(谢谢你.)