句型转换!我想知道为什么!

、She is tall and fat。She has long hair。(合并为一句)She is __a___ tall and fat girl _with__ long hair。a。girl 一个。样的女孩,with表示具有2、Kate is going fishing on May 2nd (对on May 2nd 提问)__When____ __is____ Kate going fishing?对时间提问用when 3、Jim became famous when he was fifteen。(改为同义句)Jim became famous __at___ __the___ __age___ ___of___ fifteen。at the age of 在。。。年纪,固定用法4、We did our homework yesterday evening。(改为否定句)We __didn't__ __do____ our homework yesterday evening。过去时的助动词是did,其否定式缩写成didn't,动词过去式did（做）,恢复成原形do。