1 . Please take care of your valuable cameras and don’t place them on the desk to prevent from_________(damage) by some naughty children. (所给词的适当形式填空)

2 . A terrible fire broke out on Sunday night, ______ the Henderson Tower ______ ______.
周日夜间发生一场可怕的大火，使得亨德森大楼严重受损。

3 . He knocked over a bottle of ink and ________ the tablecloth.

A．damaged

B．harmed

C．ruined

D．destroyed