1 . While at table, you should pay attention to your ________ (行为). （根据汉语提示单词拼写）

2 . Keeping the right b________ (平衡)between progress and protection is a big challenge. (根据中英文提示填空)

3 . The room was filled with smoke and we could hardly b________.(根据首字母单词拼写)

4 . Being in such a beautiful place under the broad sky, breathing the fresh air makes me feel b________ to be alive. （根据首字母单词拼写）

5 . Lacking confidence is the biggest b________ to success. （根据首字母单词拼写）

6 . We can hear the windows ____________(beat)by the heavy rain drops. （用单词的适当形式完成句子）

7 . Employing body language appropriately can help you break down communication ______(障碍). （根据汉语提示单词拼写）

8 . I have learned another two foreign languages ______ English.

A．besides

B．on

C．except

D．except for

9 . These dead animals should be b________ immediately since they aren’t fit to be eaten.（根据首字母单词拼写）