hurry off 与hurry up

问题描述:

hurry off 与hurry up
1.when she heard the bell,she______the door.
a.hurried off to open b.hurried up to open c.hurried off opening d.hurried up opening
选谁呢?为什么?

B
hurry up赶快,抓紧时间 加to表目的,整句意为:她一听到铃声响就赶紧去开门
hurry off匆忙离去