—What's the matter with Peter?—He was seen crying when he was ing out of the teacher's office. He ________ by the teacher.A.may be scoldedB.should have been scoldedC.must be scoldedD.must have been scolded
网友回答
D解析must + have +动词的过去分词，表示对过去某事或者某种情况的肯定推测，只能用于肯定的陈述句。如：The ground is wet; it must have rained last night. 如果对过去作否定的推测，必须用can't + have +动词的过去分词。如：He can't have been to your home; he doesn't know your address.