SAT 的一道writing的题

问题描述：

SAT 的一道writing的题
Bertha Lamme received her engineering degree in 1893,which she then specialized professionally in the design of motors and generators.
(A) 1893,which she then specialized professionally
(B) 1893,specializing as her profession
(C) 1893 and,as a professional,specialized
(D) 1893,then,for a profession,specializes
(E) 1893,she has specialized as a professional

1个回答分类：英语 2014-09-25

问题解答：

我来补答

C
(A): the original has an extra 'which'. This 'which' has no reference and is not necessary.
(B): the two actions 'received' and 'specialized' are clearly in sequence and thus the 2nd verb 'specialized' should not be turned into a present participial clause.
(C): 'specialized' and 'received' are in sync and both are in past tense. The 'as a professional' is a parenthetical phrase.
(D): 'specializes' is present tense, disagreeing with the past tense 'received'
(E): This creates a run-on sentence.
我是美籍华人英语老师, 这样解释明白吗?

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