B
One effective way of destroying happiness is to look at something and focus on even the smallest fault.It's like looking at the tiled (铺瓦的) ceiling and concentrating on the space where one tile is____.
Once I heard a bald man said, "Whenever I enter a room, all I see is hair." Once you've ____what your missing tile is, explore whether acquiring it will completely make you happy. Then do one of the three things: get it, replace it with a different ____,or forget about it and _ __the tiles in your life that are not missing.
We all know people who have had a relatively ____ life, yet are essentially unhappy while people who have suffered a great deal but generally remain happy.
The first secret is gratitude. All happy people are ___. Ungrateful people cannot be happy.The second is ___that happiness is a byproduct of something else. The more passions we have, the more happiness we are likely to experience.Finally,if you choose to find the  ____in every situation, you will be blessed, and if you choose to find the awful, you will be cursed. As for happiness itself, this largely depends on your decision to make.

A．different B．missing C．short D．broken

A．determined B．predicted C．assumed D．imagined

A．tile B．brick C．ceiling D．house

A．look on B．focus on C．count on D．rely on

A．peaceful B．difficult C．easy D．ordinary

A．wealthy B．grateful C．proud D．generous

A．admitting B．dividing C．proving D．realizing

A．worst B．best C．positive D．negative