21.The accident in which two people were seriously injured resultedcareless driving.

A. in

B. from

C. on

D. of

正确答案：B

解析：

21.【翻译】那场有两人受重伤的事故是由于粗心驾驶造成的。【精析】B result in:#致，原因作主语;result from：由造成，由于，因而产生，结果作主语;result作动词时一般不与on或of搭配。根据句意可知,careless driving（粗心驾驶）是原因。故选B。

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