旧 prep愈发求助！求解救求解救啊！！！

简单的豆

By offering lower prices and a menu ofpersonal communications options, such as calleridentification and voice mail, the newtelecommunications company has not only captured customers from other phone companies butalso forced them to offer competitive prices.

(A) has not only captured customers fromother phone companies but also forced them
(B) has not only captured customers fromother phone companies, but it also forced them
(C) hasnot only captured customers from other phone companies but also forced thesecompanies
(D) not only has captured customers fromother phone companies but also these companies havebeen forced
(E) not only captured customers from other phonecompanies, but it also has forced them
想问下~我觉得A选项里的them可以指代other companies啊······还有D 选项 是不是要改成but also have been forced these company? 答案C

Taste buds are onion-shaped structureswith between 50 and 100 taste cells, each of them has
fingerlike projections poking through theopening located at the top of the taste bud called the taste
pore.

(A) them has fingerlike projectionspoking through the opening located at the top of the taste bud
called the taste pore
(B) them that have fingerlike projectionsthat poke through an opening located at the top of the taste
bud, which they call the taste pore
(C) which has fingerlike projectionspoking through the opening, called the taste pore, located at the
top of the taste bud
(D) which having fingerlike projectionsthat poke through an opening, which is called the taste pore,
located at the top of the taste bud
(E) which have fingerlike projectionsthat are poking through an opening located at the top of the
taste bud called the taste pore
答案C 我觉得called是修饰opening并作为插入语，然后located修饰taste pore 是么？

Blaming its recent troubles on a wideningrecession and slow rate of technology spending, the
computer company announced that it wouldcut 10 percent of its workforce--more than 2,000
jobs--and expected to report a loss inits third quarter.
(C) company announced the cutting of itsworkforce by 10 percent, more than 2,000 jobs, and it expected areported
prep解释：and it expected….中的it指代前句的主语the company，实际为多余，直接使用and expected与
announced平行即可，多余的it造成了run-on错误。 但是为什么不能看成 it指代前面的the company 然后 Blaming``````, S V O, and S V O.呢？即and后面与前面的主句平行？

A recently published report indicatesthat the salaries of teachers continue to lag far behind other
college-educatedprofessionals, because they make an average of nearly $8,000 a year less at the
start of their careers and almost $24,000 less ayear by the time they reach the age of 50. (E) those of other college-educatedprofessionals--by an average of nearly $8,000 a year at the
start of their careers, and by almost$24,000
by an average of nearly $8,000 a year at the start of their careers, and by almost $24,000这里想问下，and by前面为什么会有逗号？and前面有逗号一般不是两个句子平行时用的么？


还有一道·····
Whereas a ramjet generally cannot achieve high speeds without the initial assistance of a rocket, a scramjet, or supersonic combustion ramjet, can attain high speeds by reducing airflow compression at the entrance of the engine and letting air pass through at supersonic speeds.
我想问下 这句话后面 can attain 的主语是那个？

kiwifoodtown

试着给你一题一题的回答。

1题，不可以用them, 后面必须要重新在用these companies来区别前面的customers。

2题，是修饰但不是插入语。

3题，主语相同，并列句中的主语成分可以省略。有it 代词也不能说是run-on PREP对这个解释有点偏颇，（prep 毕竟不是og,解释不严谨）

4题，逗号的运用，更明晰了这种平行结构，否则会造成破折号后成分的繁多臃肿。

5题，主语是a scramjet, or supersonic combustion ramjet

简单的豆

真心谢谢鸟！！！！