达瑞威尔阶底界的“金钉子”被钉在常山县黄泥塘剖面的什么地层中？（）
A.胡乐组
B.黄泥岗组
C.宁国组
参考答案：C
She _____________ to play chess with her father. [ ]
A. want
B. wating
C. wants
D. is want
