1 . Even worse, the study found that girls act on that b____. (根据首字母单词拼写)

2 . If you are on a tight b________, I recommend that you buy the basic version because it’s considerably cheaper. (根据首字母单词拼写)

3 . Carbon dioxide, which make a b_____(屏障)between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer. (根据中英文提示填空)

4 . We stopped by Mary’s house for a _____(短暂的) visit yesterday. (根据汉语提示单词拼写)

5 . The body is made up primarily of b________, muscle, and fat. (根据首字母单词拼写)

6 . Water can be purified by________(煮沸) for five minutes.(根据汉语提示单词拼写)

7 . Hearing the bad news, she________ (遮盖) her face in her hands and cried. (根据汉语提示拼写单词)

8 . The two men fought a ____________ (战斗) for land and water rights. (根据汉语提示单词拼写)

9 . After the storm, the ground was covered with many ________(树枝)．(根据汉语提示单词拼写)

10 . Hold your ________ (呼吸) for a count of five, then slowly breathe out. (根据汉语提示单词拼写)