16. I have to take some medicine before       (go) to bed.

15. These magazines mustn't       (take) out of the reading room.

14. Should these food       (keep) dry?

13.        (luck) ， she wasn't badly hurt in the car accident.

12. She made a       (decide) to study English hard.

11. My cousin was sad for the       (die) of her cat.

10. Dad used to       (drink) lots of water when he was young.

9. I was afraid of       (speak) in front of so many people.

8. I'm lost. Could you tell me how       (get) to Tian'anmen Square?

7. Thinking too much will make you       (stress) out.