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[Sentence Correction]
试题详情
题目：
Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if one arm is lost it quickly replaces it, sometimes by the animal overcompensating and growing an extra one or two.
选项:
A、one arm is lost it quickly replaces it, sometimes by the animal overcompensating and
B、one arm is lost it is quickly replaced, with the animal sometimes overcompensating and
C、they lose one arm they quickly replace it, sometimes by the animal overcompensating,
D、they lose one arm they are quickly replaced, with the animal sometimes overcompensating,
E、they lose one arm it is quickly replaced, sometimes with the animal overcompensating,
答案:
B
提问：
我的思路：
主语是Starfish，因为第一行最后有have，所以认为Starfish是个复数主语，用they来指代，所以排除AB。
D中they指代不清排除，
CE对比，C是主动E是被动，选主动
疑问：
1.排除AB的原因对吗？
2.CE对比，C是主动E是被动，选主动。这个想法对嘛？
3.B选项中的it指的是谁？
解答：
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