题目

—Where ____ Margaret have put the empty bottles?     —She ______ them away. They must be somewhere.     A．can; can’t have thrown           B．must; needn’t     C．must; must have thrown            D．can; must throw   答案：A我国跨纬度最广的省级行政单位是（ ）。A、琼 B、新 C、甘 D、内蒙古