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）

6 . ________ the convenience of digital payment, many senior citizens started to use smart phones.

A．To enjoy

B．Enjoying

C．To have enjoyed

D．Enjoy

7 . 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）

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

10 . You don’t have to run fast or for long _______ (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of _______ (die) early by running. （所给词的适当形式填空）