Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if they lose one arm they are quickly replaced, with the animal sometimes overcompensating, growing an extra one or two.
语法 Sentence Correction-15409
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正确的用户笔记
ningdi 2013-09-23 19:24:35
they指代问题
moneysharon 2015-08-11 09:52:32
conditional 从句的两个部分应该同为active 或者同为passive
ppj 2014-12-26 14:11:27
they 指代不清晰，尤其是第二个they
lixiaoye1002 2016-05-13 10:21:34
they应该质指代同一对象， 第二个they指代错，而且代arm应该用it if x then y，前后主被动要统一，lose arm 主动，replaced 被动，错 growing接不上
jessicachow 2016-01-19 17:54:58
if…then…结构要同主同被，if they lose one arm(主动)they are quickly replaced(被动)错了。
jessicachow 2016-01-19 17:53:22
they are quickly replaced中的什么东西被replaced?应该是one arm，因此代词错了。同样，comma V-ing的用法错了，应该要体现前后关系，用And
Charlotte0305 2015-06-22 15:48:03
be replaced 应该是arm单数，they用复数时错误的
Glamorbree 2015-01-25 16:14:58
overcompensating 和 growing之间应该用 and 来连接
SharonMiss 2014-09-30 13:23:12
overcompensating和growing應該是並列的關係，中間要有and
iris88208 2014-09-26 20:12:06
if then 语态不一致；第二个they 没有agreement。overconpensating跟 growing错误同C
Leating 2014-09-26 10:03:32
one arm和 they are replaced 不对应，
