题目

—Why didn’t you put your cellphone in your overcoat pocket?          —I ________, but I was afraid it would be stolen.          A．had put      B．put     C．would have       D．could have 答案：C 解析: 由语义环境可知，答话人本来想把手机放在大衣口袋里，但害怕被偷，所以未放。would have done表示本想做某事，但未做。故选C。下列情况下，物体受平衡力作用的是（ ）A．苹果从树上落下来B．汽车在弯道上匀速转弯C．物体在斜坡上匀速直线滑下D．向上抛出的石块