The story of Li Tianyi, the son of ________ famous military singer, driving a BMW without a

license and attacking a couple on the road has drawn the attention of ________ public.[ ]

A. the; the  

B. /; the  

C. a; an  

D. a; the

钢丝绳在破断前一般有（）等预兆，容易检查、便于预防事故。

A、表面光亮

B、生锈

C、断丝、断股

D、表面有泥