问题详情：
根据句意及汉语提示完成单词。
1. It is necessary for them to receive training before doing this ______（任务）.
e is a (瞎的) boy crossing the street. Let’s go and help him.
3.I used to be afraid of staying in an_____________ (空的) room alone.
4. I think it’s not right to smoke in __________ (公共场所).
5. I’m happy that I have this (机会) to study in the USA.
【回答】
d y 4. public ce
知识点：单词拼写
题型：单词拼写
