第二节 语法填空(共10小题；每小题1．5分，满分15分)
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答卷标号为31-40的相应位置上。
Six days of spring rain had created a wild river 31 (run)by Nancy Brown's farm．As she tried to drive her cows to higher ground, she 32 (slip) and hit her head on a fallen tree trunk. Nancy was badly hurt and could only walk with great 33 (difficult)．The water 34 (rise)．
