请根据句意或括号中的中文提示、英文释义，写出句中所缺单词，使句子通顺。
1.To tell you the truth, Mrs. Bird, I don't like chicken （也）!
2.Don't be (紧张的). Everything will be OK.
3.Not using plastic bags helps (keep sth. safe away from danger) the environment.
4.We haven't (make up one's mind) whether to have a picnic or not.
5.People all over the world love and want no war.
