根据短文内容和所给汉语提示，写出空白处各单词的正确形式。

There is an old saying, ‘East or west, home is ____小题1:___（最好）.’ It means that nothing can take the place of family.

In my family, there is always____小题2:____（充满）of happiness. My parents seldom help me to finish my homework, but they ____小题3:____（教） me what I should do. For ____小题4:___ （例如）, they always tell me that happiness is the ____小题5:___（重要） thing in the world. When I ____小题6:____（失败）in my tests, I always think of it, and then I am not ____小题7:____（伤心） at all. Sometimes, they also tell me not to be so careless . I feel sorry to them because I always make them ___小题8:____(担忧).

In a word, every family has its __小题9:___（自己的） happiness, and I __小题10:___（相信） that wherever I go ,my family will be always behind me.

使用下面的哪条命令可以查找系统中的二进制文件（）。

A.which

B.where

C.whichis

D.以上都不是