1 . What squirrels can do is ________ (store) all kinds of food before the winter. (所给词的适当形式填空)

2 . The activity is rewarding and fulfilling, which helps b________ our cultural confidence. (根据首字母单词拼写)

3 . I prefer to play outdoors rather than ________ computer games in the room.

A．play

B．to play

C．playing

D．plays

4 . He did nothing but _________ (wait) for them.（所给词的适当形式填空）

5 . All we can and should do is c________(珍惜) every single. （根据中英文提示填空）

6 . She’s one of those guests who do nothing but ______ (complain). (所给词的适当形式填空）