根据句子结构或括号中所给的词在空格处填上合适的词或所给词的正确形式，并把答案填写在答题卷相应的位置上。
小题1: No one can live _______ water and food for longer than seven days.
小题2:I was about to switch off the computer _______ the lights went out.
小题3:Since he graduated from university last year, he _______  (explore) the South Pole with his teammates.
小题4:The thieves ran away immediately when they heard the alarm went _______.
小题5:The classroom was decorated by the pupils for the _______ (celebrate).
小题6:_______ is believed that Martin Luther King was murdered.
小题7:Christopher Reeve tried to collect money to help the _______ (able) people.
小题8:She refused her father's help and she got the job on _______ own.
小题9:If you are traveling in the country, _______ customs are not familiar to you, please do as the Romans do.
小题10:China, _______ (found) in 1949, is now a developing country.