单句改错：（共10小题，每小题1分，共10分）
小题1:It’s quite difficult to find who is responsible of this work.
小题2:Recently I’ve read 4 books, of that two were written by him.
小题3:The biggest dolphins can measure four meters length.
小题4:She loves the farm very much which she was brought up.
小题5:Tom, as well as his parents, like hiking very much.
小题6:The book is worthy to read.
小题7:They are in preparations for their long journey.
小题8:They were sitting around take turns to tell each other about their projects.
小题9:It is said above, the number of students in our school is increased.
小题10:The stranger stood up, his sharp eyes being fixed on my face.