Mary devoted her lifethe sick.

Once a decision has been made,all of us should____ it. [ ]

Numbers of terrorists attacks in the pastfew years have signaled that anti-terrorism remains _____ long term goalfor______ world.

_____ to strong sunlight for a long time will do harm to our skin.

依次填入下面横线处的词语，最恰当的一项是大海的 ,是因为它拥抱太阳，融化阳光，把赤橙黄绿青蓝紫尽收于自己的调色板；大海的 ，是因为它聚集风雨雷电，把自然的伟大变成自己的能量；大海的 ，是因为它千万年的积攒，把珍珠宝贝深深地收藏；大海的 ，是因为它敞开胸怀，汇合滚滚大江和涓涓细流。