1 . Behind every book is a man, behind the man is the race, and__________________________(这个民族背后是自然和社会环境). (根据汉语提示完成句子)

2 . The tunnel project has already fallen________ schedules. (用适当的词填空)

3 . We left in a hurry and I must have________(忘了拿钥匙). （根据汉语提示完成句子）

4 . Upon hearing that she had been awarded the Nobel Prize, she said, "The honour is not just mine. There is a team behind me, and all the people of my country." （英译汉）

5 . We can't afford to fall _____ our competitors. （用适当的单词填空）

6 . 我们在这个项目上落后于预定计划了。
We are __________________ on this project.

7 . Have you been talking about me ____ my back? (用适当的词填空)

8 . I don’t want to_____anything______(留下).(根据汉语提示填空)