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）
【小题1】Things fall to the ground because of the earth’s gravity (万有引力).
【小题2】Two children drownd (溺死) after falling into the water.
【小题3】The scene (场景) of this play is set in Ireland.
【小题4】Each of us has our strengths and weaknesses (弱点).
【小题5】He apologized (道歉) publicly the day before yesterday.
【小题6】Today’s festivals have many origins (起源)， some religious, some seasonal, and some for special people or events.
【小题7】Easter is an important religious and social festival for Christians (基督徒) around the world.
【小题8】What will happen to you if you don’t eat a balanced (平衡的) diet?
【小题9】The fact is that I earned my passage by working as an unpaid hand, which accounts for (导致)my appearance.
【小题10】They laid eggs too and existed (存在) on the earth for more than 140 million years.
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解析：
【小题1】考查名词。gravity“重力”。故填gravity。
【小题2】考查时态。句意“两个儿童落入水中后溺亡了。”根据句意可知，用过去时。故填drownd。
【小题3】考查名词。scene“场景”，句意“这个戏剧的场景是以爱尔兰为背景的。”故填scene。
【小题4】考查固定短语。strengths and weaknesses“优点和缺点”，故填weaknesses。
【小题5】考查时态。根据the day before yesterday可知，用过去时。故填apologized。
【小题6】考查名词的复数。根据many可知，用名词的复数形式。故填origins。
【小题7】考查名词复数。Christians“基督徒”，句意“复活节是基督徒的一个重要的宗教和社会节日。”故填Christians。
【小题8】考查形容词作定语。balanced“平衡的”，形式diet。故填balanced。
【小题9】考查固定短语。account for“解释......的原因，说明”。故填accounts。
【小题10】考查考查时态。and表示并列，根据laid“产蛋”可知，填existed。