题目

10. We went through a period _____ communications were very difficult in the rural areas. A. which    B. whose   C. in which   D. with which 答案：C 解析: 先行词为period，从句中缺少时间状语，所以应用when或in which引导后面的定语从句。二、中英互译。1. 道路安全 2. 过马路 3. 看交通信号灯 4. 等待绿灯5. 当心、提防  6. 遵守规则 7. 在人行横道上 8. 朝左边看 9. stay safe 10. get on the bus