657.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
658.Can't you notice that there is little time left?Please tell me the whole thing ________.
A.in case
B.in brief
C.in total
D.in detail
657.答案是是B;考查介词短语在具体语境中的运用。In support后备的，供支援用的；in support of支持；out of control失控；in charge 负责；at the mercy of 任凭…的摆布。
658.答案是B;in brief简而言之；in total 总计，合计；in detail详细地。此题应注意上下文there is little time left的暗示。
