1．Teachers care for the youth and show ____________ (关心) for their growth.
答案：concern
2．Talents come from diligence, and knowledge is gained by ____________ (积累)．
答案：accumulation/accumulating
3．No matter how tough it is, you must spare no effort to ____________ (完成) whatever you are asked to do.
答案：accomplish
4．In the old days many people had nothing to eat and died from ____________ (挨饿)．
答案：starvation
5．Don’t waste time ____________ (为……哀痛) your past；you should take action to meet your bright future.
答案：mourning
