从方框里选择句子把对话补充完整 (只填序号)。
A. Let me help you.
B. Let's clean the classroom.
C. Let me clean the windows.
D. Really?
A: We have a new classroom?
B: Let's go and see.
C: It's so big! But it's dirty(脏的).
A:
ABC: OK.
A: Let me clean the teacher's desk.
C:
B:
C: thank you.
答案:【1】D【2】B【3】C【4】A