下面每个句子中均有1处错误，请在有错误的地方增加，删除或修改某个单词。
增加：在缺词处加一个漏词符号(∧)，并在其下面写上该加的词。
删除：把多余的词用斜线(﹨)划掉。
修改：在错的词下划一横线，并在该词下面写上修改后的词。
注意：每处错误及其修改均仅限一词；
小题1:There was a time that I was spellbound by novels written by Charles Dickens.
小题2:The manager changed his marketing plan yesterday because what he had learned from a film.
小题3:As a matter of fact, you can make your English fluently by talking with native speakers as much as possible.
小题4:A large troop of soldiers have been sent to the forest in the search of the missing kid.
小题5:He has directed a lot of films, many of them are still popular till today.
小题6:At last, his life in prison came to end and after that he was elected president of the country.
小题7:Elias was also put in prison because he once helped Mandela blew up the government building.
小题8:You can’t imagine what difficulty such a great person had made his dream come true at last.
小题9:It is suggested that customers should pack up the remained food and take them home.
小题10:Although many cities in the world compete with the opportunity to host Olympics, there is only one winner every four years