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.

“伏藏”