题目内容：

根据汉语和首字母提示，写出单词的正确形式。（每空一词）

1.Depending on context, love can be of different v______ （种类）.

2.People have trouble s______ （简化）their life.

3.But, it should not be r______（要求）for survival.

4.They both have very strong p______（个性）.

5.He was ashamed of l______ （撒谎）to his parents.

6.This particular customs have their o_______（起源）in Wales.

7.People say no one was p_______（表现）at the time.

8.Do you know of any e________（濒危）animals?

9.She shook her head, d________（坚决）not to go with him.

10.Are there any v_______（自愿者）to help clear up?