1 . As the educator puts it, ________ (expand) your knowledge by reading more books is a wise choice. (所给词的适当形式填空)

2 . All in all, it is high time that we devoted ourselves to ________ (protect) oceans. （所给词的适当形式填空）

3 . The radiation amount of a mobile phone for half-hour periods per day is equal to, according to a recent medical study, ___________ (expose) to an X-ray for ten seconds.

4 . There’s no __________ (stop) the supernatural miracles that will occur in your life once you are determined to change your habits.

5 . All the staff are considering __________ (go) to the city center for the fashion show.

6 . When someone is making a presentation, other people should listen without __________ (interrupt).

7 . Jack denied ________ (steal) the important document of his company. (所给词的适当形式填空)

8 . You may drink, smoke, be overweight and still reduce your risk of ________ (die) by running. (所给词的适当形式填空)

9 . The Internet also provides us with a cheap alternative to ________(communicate) with others. （所给词的适当形式填空）

10 . ________ (expose) to too much violence has a negative impact on the development of children’s character. （所给词的适当形式填空）