根据下列句子及所给汉语注释，在对应位置上写出空缺处各单词的正确形式。（每空只写一词）
Things fall to the ground because of the earth’s ________(万有引力).
Two children ________ (溺死) after falling into the water.
The ________ (场景) of this play is set in Ireland.
Each of us has our strengths and ________ (弱点).
He ________ (道歉) publicly the day before yesterday.
Today’s festivals have many _______ (起源)， some religious, some seasonal, and some for special people or events.
Easter is an important religious and social festival for ______ (基督徒) around the world.
What will happen to you if you don’t eat a _______ (平衡的) diet?
The fact is that I earned my passage by working as an unpaid hand, which ________ for (导致)my appearance.
They laid eggs too and _______ (存在) on the earth for more than 140 million years.