1. When I ride a bike in the street, I never ride __________ (太快).
2. It is not right for us to ___________ (上学迟到).
3. When you get on the bus, you should wait for ___________ (轮到你).
4. Let's go to the zoo, OK? I have two ___________ (票). Great.
5. We must stop and ___________ (向两边看) before we cross the road.