问题补充:
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
答案:
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)”。