1)

; and what is not absolutely impossible, every child may reasonably be expected to aspire after, on the principle, that whatever man has done, man may do.

Q)

and what is not absolutely impossible

절이 있는데

, every child may reasonably be expected to aspire after

접속사 없이 어떻게 절이 또 오게 된건가요???

2)

To what causes are the changes we witness around us to be referred?

Q)

이 지문 구조 파악이 잘 안되어 혼동됩니다 ㅜ 

3)

When television became popular, many people thought it would be the end of radio, but it didn't.

답: didn't. -> wasn't

Q)

would 는 받는 대동사로 wouldn't 가 와야 하는거 아닌가요??