The book was cut a hole in by someone The book was cut a hole in by someone。Is the sentence right in English grammar？

what did you use to do that you don't do now? What did you use to do that you don't do now? As for the above sentence,what role does the part of 'that you don't do now' play in it? is it an addjective clause to modify 'what'? To tell the truth,the sentence appears in the China's English textbook for juniour high school.It isn't a title.

that was special What happened to you that was special? As for the above sentence,I wonder what the use of 'that was special' is in grammar, is it an adjective clause that modify 'what'?

should and be supposed to （1）He should tell me about it. （2）He is supposed to tell me about it. What are the tiny differences between them?

The passive voice of 'take the photo of me' （1）The photo was taken of me yestersday.（2） I was taken the photo of yesterday. As a passive,which of the above is right or acceptable?

'are made of silk ' and 'were made of' (1)These socks are made of silk. (2)These socks were made of silk. I wonder what the differences between them are.What are the situations they are used in and what are the meaning they refer to？

ever lived in China for 3 years. He has ever lived in China for 3 years. What does the sentence mean? Is it right grammatically?

been in and been to (1) He has ever been in American for 3 years. (2) He has been to American for 3 years. Do the two sentences have the same meanings in some ways?

He has gone to America for 3 years. Is the sentence right from English grammar? though I know I can say he has been in America for 3 years,instead. and I also think 'he will go to America for 3 years' is right.