a truck coming directly from the opposite direction the car driver turned right to avoi

问题补充：

a truck coming directly from the opposite direction, the car driver turned right to avoid a head-on collision.

A. Seeing; sharp

B. Having seeing; sharply

C. Seen; sharp

D. Had seen; sharply

答案：

(答案→)A. Seeing; sharp

B. Having seeing; sharply

C. Seen; sharp

D. Had seen; sharply

解析：第一空考查分词做状语，see与driver为主谓关系用现在分词作状语；第二空考查形容词sharp “急剧的”。句意：看到一辆卡车从对过驶来，为了避免碰撞小汽车司机向右急转。