7. If you have any idea where it ______ be, please call me.

6. Getting this contract is ______ to the future of our company.

5. There would be ______ people in the ______ hall.

4. I’m very ______ about my son’s health.

3. There are extra trains to the seaside ______ the summer.

2. I have a datal ______ at 3 p.m.

1. The prisoners ______ to escape, but failed.

10. pretend　　　 J. living being, especially animals

　C)选择正确单词填空。

9. creature　　　 I. foreign

8. alien　　　　 H. things of which the cause or origin is hidden or impossible to explain