1 . By taking exercise ________ (regular), I have grown healthy not only physically, but also ________ (mental) in the past years. (所给词的适当形式填空)

2 . If you _________ (regular) study English each day for six months to a year, your English will greatly improve. (所给词的适当形式填空)

3 . The volunteers ____________(regular) contact with the community. (所给词的适当形式填空)

4 . These school children ________ (regular) help the production teams do weeding. （所给词的适当形式填空）

6 . Exercising ________ (regular) is important for us to stay healthy. (所给词的适当形式填空)

7 . He ___________(regular) drove from his home to his place of employment.  （所给词的适当形式填空）

8 . (1)Eating properly and exercising ________ (regular) can make one enjoy a healthier and longer life. (用所给词的适当形式填空)
(2)When does the new ________ ( regular) come into force?

9 . The purity of the water is tested_________(regular). (所给词的适当形式填空)

10 . They may even have raced each other-but not __________(regular). (所给词的适当形式填空)