问题详情：
根据句意和汉语提示写出单词，完成句子
se find out the two main ____________(人物) in this novel after finishing reading it..
2. You can take a __________(径直的) train to Chendu.
3. Water_______（污染）is one of the most serious problems we are facing now.
4. The aim of this course is to i_________ your spoken English.
5. How to protect the ________________（环境）has been under discussion.
【回答】
acters ct ution ove ronment
知识点：单词拼写
题型：单词拼写
