4.
-> He finds the book interesting.
-> The book is interesting enough for him to see.
-> He is much interested in the book.
-> The play makes him interesting.
5.
-> The test was so difficult that she couldn't do it.
-> It was such a difficult test that she couldn't do it.
-> The test was too difficult for her to do.
-> It was so difficult a test that she couldn't do it.
6. -> I wish I were able to go with you.
7. -> He bought so many books that he couldn't read them all.
8. -> There is such a lot of rain that we can't go out.
9. -> Jane advised Tom not to watch TV a lot.
10. -> I spend hours getting to work every day.
11.
-> They started studying English 3 years ago.
-> It's 3 years since they studied English.
12. -> I have never seen this kind of movie.
13. -> The last time he went back to his village was in 1989.
14. -> I wish he didn't talk too much in class.