题目

完形填空先通读短文，掌握其大意，然后从A、B、C、D四个选项中选出一个可以填入相应空白处的最佳答案，将其标号填入题前括号内。It rained in the country those days. It was very1_______ everywhere. Classes in the morning were over and the children of about 5 to 6 years old 2_______around Mrs. Brown, the teacher, and waited. Five minutes later she finished putting the 36th boot on the 3_______pair of little feet. All the children left except（除了）the smallest one.    Now she had a look at her 4______, it was five past twelve. Her daught 设是奇函数，且在内是增函数，又，则的解集是（   ）     A．                  B．     C．                    D．