Before learning how to synthesize the growth hormone, it had to be painstakingly removed by scientists in small amounts from the pituitary glands of human cadavers.
语法 Sentence Correction-3660
标记
正确的用户笔记
josie_dong 2016-08-25 16:42:13
learning > ,后面跟scientists
gogogoLei 2016-08-26 10:42:04
learning modifier紧跟被修饰词，it=hormone不可能learn
joyce99929 2016-12-27 21:26:21
before learning省略的主语变成it错误。
gmat700的猫的喷嚏 2016-12-19 23:05:59
动名词短语应该和主句公用一个主语也就是it，it指代的有时the growth hormone，the growth hormone learn很tricky
mszzzz 2016-06-30 00:19:19
learning的逻辑主语应该是scientists，而不是it
LM檬先森。 2016-05-30 16:21:43
(E) 分词结构learning…的逻辑主语错误，不应该是it(hormone)。
huiminzi1124 2016-05-17 16:24:51
(E) 分词结构learning…的逻辑主语错误，不应该是it(hormone)
katritina 2016-05-08 21:24:25
it（hormone）不能做learning的逻辑主语
ypheroin 2015-12-09 20:42:27
it（hormone）不能做learning的逻辑主语
jyxoo 2015-03-18 22:16:35
learning的逻辑主语是it（hormone），不对
