Unit 4 Road safety同步练习一、英汉互译。1.等待绿灯_ 2.看看交通灯_3.穿过马路_ 4.小心汽车_5.保持安全_ 6. cross the road with other people_7. stop and wait_ 8. look for a zebra crossing_二、根据图片或中文提示补句子。1. There is a _.(斑马线)You can cross it. 2. You can _(右转)in front of the post office. 3. There are _(汽车和自行车)on the road.4. You must _(小