---Whydoeshelooksounhappy?---Hehas______byhisclassmates.A.laughedB.laughe

发布时间：2020-08-07 03:52:36

---Why does he look so unhappy?---He has ______ by his classmates.A.laughedB.laughed atC.been laughedD.been laughed at

网友回答

D解析he与laugh at是被动关系，laugh at是短语动词，at不能省略。
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