1) 

At the time, WikiLeaks' supporters have apparently gone on the offensive, staging retaliatory attacks against Internet companies that have cut ties to the group amid fears they could be associated with it.

Q)

amid fears they could be associated with it.

접속사가 안보이는데 절이 어떻게 온건지 궁금합니다~!

2)

Over the past week it has continued to publish a steady stream of leaked State Department documents with little visible evidence of injury from repeated, anonymous cyber-attack or the multiple attempts to cut off its access to funding and Web resources. 

Q)

evidence of injury from repeated

전치사 + 과거분사가 어떻게 오게된건지 궁금합니다~!!

전치사+동명사는 가능한걸로 알고 있기에 혼동됩니다..

3) 

In the field of philosophy of education, progressive education as championed by John Dewey has had a deep impact on educational practices.

Q)

progressive education as championed by John Dewey

여기서 as가 유사관계대명사로써

as (progressive education is) championed by John Dewey

와 같은 문장이 맞는건가요??

4) 

,and both were murdered before they could be brought to trial.

Q)

재판에 가기전(과거)에 살해된거니깐

살해된 시점은 재판에 가는 시점(과거) 보다 대과거로 쓰여야 하는거 아닌가요??

both had been murdered before they could be brought to trial.

5)

Dr. Treat is hard at work on an invention he hopes will change the way surgeons work in the operating room.

Q)

an invention he hopes will change the way

이 구조가 원래는 

an invention (that) he hopes will change the way 

목적격 관계사가 생략된 구조가 맞나요~?

6)

That which is tedious and joyless to one, will be so to another, if pursued in the same way, and under the same circumstances.

Q)

will be so to another

이 so 는 어떻게 쓰인건가요?? 

'그렇게'하는 부사인건가요?