According to The Sun, British scientists have solved the ancient riddle of ________ came first—chick...
2022-09-22 09:41:51 59次 江苏省2018届高三5月模拟考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
According to The Sun, British scientists have solved the ancient riddle of ________ came first—chicken or egg?
A. who B. what
C. which D. that
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