1.He must be______(阻止) from crossing the street when the light are red.
问题描述：
1.He must be______(阻止) from crossing the street when the light are red.
2.It's very important to teath the children about the road s______.
3.Let'sforget about those w_______ and enjoy ourselves.
4.She is very ________(有见识的) about the art.
答
1 stoped 原因：被动,和stop sb.from doing sth.短语
2 safety 原因：about 后跟名词,道路安全
3 worries
4 knowledgeable
不晓得原来worry还可以变负数类.- -!老师没教,额才上初三...