单选题 Suddenly the donkey gave a loud bray. Thinking that the donkey______eat him, the tiger ran away hurriedly.
【正确答案】 C
【答案解析】解析:本题考查时态。根据上下文,题干需要表达“立刻,马上”,be about to do能满足这个要求,意思是“马上……”。