我把房子从上到下搜了个遍，还是找不到它。

I've searched the house ___from ___top ___to ___bottom and still can't find it.

我们经常能看到有人全身穿黑色，或全身穿白色。

Very often we can see someone in black, ___from ___top ___to ___bottom, or in white.

公司从上到下进行了重组以提高效率。

The company was reorganized ___from ___top ___to ___bottom to improve efficiency.