题目

_____ for the fact that she got hit by a car and broke her leg on her way to school, she might have passed the exam. A . Had it not been B . Were it not C . Was it not D . Hadn't it been 答案：A一个圆形养鱼池，直径是4米，这个养鱼池的周长是多少米？占地面积是多少平方米？