If we don't start now we must risk the train.A. being missedB. missingC. to missD. miss

问题补充：

If we don start now, we must risk the train.

A. being missed

B. missing

C. to miss

D. miss

答案：

A. being missed

(答案→)B. missing

C. to miss

D. miss

解析：句意：如果我们现在不动身的话，我们一定会冒险错过火车。 Risk后跟动名词形式，miss与逻辑主语之间是主动关系，故选B。