根据首字母与中文意思写出相应单词的正确形式
小题1:Aren’t you feeling a________(羞愧的) of your body? I think it’s time for you to lose weight. 
小题2:As teenagers, it is normal for them to become c________(困惑的，不解的) with the changing world inside and outside of them.  
小题3:We shouldn’t be e__________(难为情的) about our weight.  
小题4:The homework in a British high school was a little c_______(具有挑战性的) for me. 
小题5:During the assembly, the h________(校长) told us about the rules of the school. 
小题6:I cut him in short in the middle of his e________(解释，说明).  
小题7:If I can tell them we had an e________(紧急情况), then they won’t be mad any more.
小题8:I am afraid Mrs. Liu won’t quite a______(同意，赞成) of your being here.  
小题9:When you exercise, your body produces some chemicals that increase your ability to c_______(全神贯注) when you study.  
小题10: Diets are u________(无用的) for becoming fit in the long term.