题目

根据短文内容，从各题所给的A、B、C、D四个选项中选出最佳选项。 Tom woke up on Monday morning.  He felt  1 . He always felt sick on Monday mornings. He had to go to school for a  2  week! He almost wished there were no week-ends.   3  was even more difficult for him to go back to school! He  4  in bed and wondered what excuse（借口）he could make this time. He looked at his body, but could find  5   wrong, A little headache?   6  . He had used that excuse many times. Then he realized that one of his teeth was loose（松动）. Good! He was just goi如图是一个几何体的三视图，根据图中标注的数据可得该几何体的体积为 ．（结果保留π）