The coach, because of the driver’s carelessness, was and crashed over the cliff on such a cold December morning.
A. in support
B. out of control
C. in charge
D. at the mercy
网友回答
A. in support
(答案→)B. out of control
C. in charge
D. at the mercy
解析：out of control意为“失去控制”；A项意为“支持”；C项意为“负责；掌管”；D项意为“任凭……的摆布（而无力保护自己）”。