假如你叫李华，这个周一的班会上大家要进行一次有关交通安全注意事项的讨论，请你根据以下提示，写一篇80词左右的发言稿。

内容要求：（1）行走时的安全事项；（2）骑车时的安全事项；（3）乘车时的安全事项

参考词汇：pavement （人行道）, handle bar （自行车把）,watch ahead （向前看）, walk, ride, take a bus, should, don’t, traffic, while, until, before, line up, play, carry, get on（off）

Dear teachers and friends,

1、When we are walking, we should walk on the pavement（sidewalk）. At the crossing, we shouldn’t cross the road until the traffic stops. Don’t play basketball, read books or listen to the music while walking. When we are riding a bike, we should watch ahead and keep both hands on the handle bars. Don’t carry anyone on your bike. It’s not safe. When we are taking a bus, we should line up and get on（off）one by one. Don’t try to get on（off）before the bus stops.