阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
【小题1】They worked day and night about three days （一切才恢复）to normal.(return)
【小题2】I can’t imagine （他们多么激动）when they received these Christmas presents.(how)
【小题3】 （如果参加）eco-travel and you will find it will help you understand the importance of nature.(take)
【小题4】Not （知道如何解决）the problem, he turned to his teacher for help. (work)
【小题5】The doctor insisted that the patient （动手术）as soon as possible. (operate)
【小题6】With （一场致命的台风爆发）, more than 600 people were listed as either dead or missing on August the 21st, 2009 in Taiwan. (break)
【小题7】To every one of us, （被录取）Beijing University is a great honor. (admit)
【小题8】The news spread quickly through the village （战争已结束）,making the villagers wild with joy. (end)
【小题9】I’ll pay you a visit tomorrow afternoon if （你方便）. (convenient)
【小题10】I would have e for the lecture given by professor Lee the day before yesterday, but I （没受到邀请）(invite).before everything returned
网友回答
(答案→)before everything returned
解析：可联系答.案.网客服索取。