二、根据汉语意思完成句子：
1. 孩子们不必创越繁忙的街道
Children _____ _____ ____ cross the busy street to go to school.
2.看，他正站在湖边.
Look! She is standing ____ ____ ____ ____ the lake.
3.凯特出事了，她被一辆出租车带倒了。
.Kate ____ _____ _____ . She was knocked down by a taxi.
4.他的腿出了毛病，他不能走路了。
