1 . The next morning he hired a boat and set out _______ (find) the well-known painter. （所给词的适当形式填空）

2 . Chinese researchers hope to use the instruments onboard Chang’e-4 _______ (find) and study areas of the South Pole-Aitken basin.（所给词的适当形式填空）

3 . (2022年全新高考I卷)The plan will extend protection to a significant number of areas that were previously unprotected, bringing many of the existing protected areas for giant pandas under one authority ________ (increase) effectiveness and reduce inconsistencies in management. （所给词的适当形式填空）

4 . Mary's sister, Frances Todd Wallace, often came over ________ (plant) flowers in the front yard. （所给词的适当形式填空）

5 . Another reason for corn's rise: The government encourages farmers to grow corn instead of rice _______ (improve) water quality. （所给词的适当形式填空）

6 . You don’t have to run fast or for long ________ (see) the benefit. （所给词的适当形式填空）

7 . I decided to do something ________ (educate) people about this problem. (所给词的适当形式填空)

8 . To avoid knee pain, you can run on soft surfaces, do exercises to _________ (strength) your leg muscles (肌肉), avoid hills and get good running shoes. (所给词的适当形式填空)

9 . As a senior high school student, you must make efforts ________ (improve) your communication and problem-solving skills.(所给词的适当形式填空)