1 . That football is such a simple game to play is perhaps the b________ of its popularity. (根据首字母单词拼写)

2 . Yesterday I ________ (写博客) about my mother’s birthday party, receiving lots of likes. (根据汉语提示单词拼写)

3 . Taking exercise such as playing tennis in the gym at least once a week is b________ to our health. （根据汉语提示单词拼写）

4 . Yuan Longping made a b________ in his research by discovering a special rice plant in 1970. (根据首字母单词拼写)

5 . The passer-by was ________ (流血) badly and it was not long before he was sent to the nearest hospital for treatment. (根据汉语提示单词拼写)

6 . It is necessary to reward children for their different good ________ (behave). （所给词的适当形式填空）

7 . I was too nervous to ________ (呼吸)the first time I learned to drive. (根据汉语提示单词拼写)

8 . He was going to take them and their b________ to catch “The True North”, the cross-Canada train. （根据首字母单词拼写）

9 . I found your menu so limited that I stopped worrying and started advertising the_______(好处) of my food.（根据汉语提示单词拼写）

10 . Most people think that the use of cellphones should be _______(禁止) while they are driving. (根据汉语提示单词拼写)