1 . The decision was made on the b________ of the information we had. （根据首字母单词拼写）

2 . The Bank of China has some overseas b________ to provide service for the local. （根据首字母单词拼写）

3 . On b________ of everyone here, may I wish you a very happy retirement. （根据首字母单词拼写）

4 . We b________ with the farmer for a supply of milk and butter. （根据首字母单词拼写）

5 . When you buy one sandwich now, as a b________ you get another one free(根据首字母单词拼写)

6 . The experience created a very special b_______________ between us.

7 . Illegal hunting will put those rare animals in danger and break the b_________ of ecosystem.

8 . At first, we didn’t feel we b______ (属于) here, but now we are attached to the land we live on.

9 . Since the coronavirus came from nature, no country should be b________ for the pandemic.

10 . The new vaccine has saved a great many people’s lives and has proved b________ to everyone concerned.