1．Every time I attempted to_persuade(persuade) her, I failed completely.
2．Leaves are found on all kinds of trees, but they differ greatly in size and shape.
3．The new evidence led to the high official being_arrested(arrest)．
4．To my delight, the students worked very hard and were making progress steadily(steady)．
5．Thank you for the great difficulty you have had helping(help) me with my designing work.
Ⅱ.单句改错
1．Comparing with the West, people in the East place much importance on family.Comparing→Compared
2．The expert says that the exports are steady increasing year by year.
steady→steadily
3．The confusing look on Tom's face suggested that he didn't quite understand his manager's idea.confusing→confused
4．New technologies have made possible to turn out new products faster.
made后加it
5．All the people presented at the meeting were all satisfied with his performance.presented→present
