题目内容：

根据短文内容及首字母提示，填写所缺单词，使短文意思完整。

Are you having a nice time today? A famous thinker Francis Bacon told us: When you are h  1.   , tell your friends, then the happiness will double(双倍) —b  2.  to you and to your friends; when you meet some p   3.  and feel lonely or helpless, also tell your friends, then your unhappiness will be h 4.   , especially to you! Do you agree?

When you smile to others, others can feel your k   5.  .  If he or she is facing a difficult time, the love perhaps will h  6.   them go through all the hard time. A smile r  7.  has great power.

W  8.   will you do when someone smiles at you? Return a sweet smile. You also send your love through the smile. From it, you may get a t  9.  friend or a strong supporter. You are in great need of them today, t  10.  and forever! So just try it, and then you will find a new and happy world.