第16题: [单项选择]She ______ on her way to school.I just phoned her home and no one answered me. A. should be B. must be C. might have been D. could be 参考答案:B 答案解析:[解题指导] 此题考查推测。读懂全句,依据后半句断定前半句为推测。审读四个选项含义: should be意为“应是”;must be意为“一定是、肯定是”,可能性较大,might have been意