题目

Suddenly he saw his friend Li Chang    (hurry) by. 答案：【答案】hurrying【解析】句意：突然他看见他的朋友离场匆匆的经过。see＋宾语＋宾补结构。hurry与his friend 之间为主动关系，且表正在进行。所以答案是hurrying。分式方程的解x=    ．