标题: OG SC 87 it指代问题,盼望大神 [打印本页] 作者: 我名字真棒 时间: 2013-9-12 13:31 标题: OG SC 87 it指代问题,盼望大神 it,they 一般都是指前句的主语
但是在这道题里
87. According to scientists who monitored its path, an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, which brightened the Northern Lights and also possibly knocking out a communications satellite
A. an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, whichbrightened the Northern Lights and also possibly knocking
B.an expanding cloud of energized particles ejected from the Sun was what recently triggered a large storm in the magnetic field that surrounds Earth, andit the brightened the Northern Lights and also possibly knocked
C.an expanding cloud of energized particles ejected from the Sun recently triggered a large storm in the magnetic field that surrounds Earth, brighteningthe Northern Lights and also possibly knocking
D. a large storm in the magnetic field that surrounds Earth, recently triggered by an expanding cloud of energized particles, brightened the Northern Lights and it possibly knocked
E. a large storm in the magnetic field that surrounds Earth was recently triggered by an expanding cloud of energized particles, brightening the Northern Lights and it possibly knocked