A-A+ He's______ as a bellyacher -- he' s always c 2022-08-05 15:35:39 问答库 阅读 169 次 问题详情 He"s______ as a" bellyacher" -- he" s always complaining about something.A．who is knownB．whom is knownC．what is knownD．which is known 参考答案 正确答案：C解析：what引导名词从句中作主语补足主语。
