题目

The bus rolled into the valley, _______ over 20 deaths. A. caused       B. having caused        C. causing    D. to cause   答案：C 直接写出得数4.8÷2= 7.2÷9= 3.5÷5= 0.56÷7= 4.8÷8= 7.2÷6= 0.35÷5= 0.56÷4=