六年级（下）第四单元第 1 课时当堂达标题Unit 4 Then and nowPart A Let’s talk[来源: ZXXK] 班级:__________ 姓名:____________[来源:Z_xx_k.Com]Ⅰ.Read and choose.（读一读，补全对话。) A. How do you know that? B. There was no library in my old school. C. There were no computers or Internet in my...
