第1个回答 2016-04-10
第一行: the school trip 中的 the 改为 a; It is locating 中的 locating改为 located
第二行: took us tow hours后面加个单词 to; twenty of ourselves and we spend中的 ourselves改为 us, spend改为spent
第三行: activities were good organised but中的 good改为 well, but改为and
第四行: enjoyed the courses 中的courses去掉 s
第五行: this course was good中的 was 改为is。who改成which