【正确答案】：
SHE HAD BEEN HIDING THAT SORE THROAT FOR THREE DAYS AT LEAST AND LYING TO HER PARENTS IN ORDER TO ESCAPE JUST SUCH AN OUTCOME AS THIS.
【题目解析】：考点：sore throat：嗓子疼；lie：撒谎；in order to：为了；escape：逃脱；outcome：结局， 结果。句子结构：句子发生在过去，隐瞒这件事发生在过去的过去，用过去完成时；and连接相同的句子成分，与前面的hiding相对应，这里也应该用lie的分词形式lying。