单句填空：根据括号中中文、首字母提示或句子结构的语法性，补充完成句子，每空只填一词。
1. She entered the lab without _______ (许可).
2. The article is _______ (限制) to 800 words.
3. She told us an _______ (难以置信) story.
4. It's important to know your own strengths and w_______.
5. After taking the medicine, Tom is s_______ better today.
6. After waiting for a long time, we grew a little _______ (不耐心).
7. The p_______ look on his face suggested that he didn't understand the maths problem.
8. The store gives a 10% d_______ for its VIP customers.
9. When I try to understand _______ prevents children from getting fat, it seems to me that there are
two reasons.
10. Meeting my uncle after all these years was an unforgettable moment, _______ that I will always
treasure.
11. She'd like to offer money to _______ needs it to continue his or her study.
12. Evidence came up specific speech sounds are recognized by babies as young as 6 months old.
13. He has made _______ (persist) efforts to realize his dream.
14. It is said that they have got the first place in the competition but they will be _______ (official) informed
next Monday.
15. His work is _______ (impress) and we all admire him very much.